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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 14151. |
If triangle ABC is right angled at C then the value of sec(A+B)is |
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Answer» Sorry sec(90)=not defined If angle C=90Then (A+B)=90Sec(90)=0 |
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| 14152. |
What is the euclid divison lemma |
| Answer» A=bq+r | |
| 14153. |
sin6A +cos6A=1-sin2Acos2A |
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| 14154. |
If tan(3x+30)=a ; find x |
| Answer» Tan (3x+30) = aORTan (3x+30)=1???????? | |
| 14155. |
1.which of the following ratios are in proportion?@ 12 : 21 and 32 : 56 |
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Answer» 32:56 32:55 |
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| 14156. |
can we use l\'hospital rule in limit and derivative in class 11 CBSE |
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| 14157. |
Iss app me toh hrr subject 2 hi sample papers available hai..baaki kb unlock honge..?? |
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Answer» Aapko uske liye pay karna padega...agar aapko aur sample paper chahiye...to kharid lo na market se...?? Unke liye pay krna padega |
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| 14158. |
I need sample papers?? Koi site bta do?? |
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Answer» Www.cbseonline. com You can also get sample paper in this app... Cbse.nic.in |
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| 14159. |
If x=0 and x=2 then how many roots are possible |
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Answer» But I\'m sure...they have no solutions ? Where is equatio And I think they hv 2 solns?? Sorry...they have no solution ? I think 1 solution ?? Oh I got it? The pair of equation on x=0 and x=3 has A. Only one soln B. No solns. C. Two solns. D. Infinitely many solns Equation kahan hai..?? Ye question sahi h kya...???? ? |
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| 14160. |
If P(E)= 0.45, what is the probability of the"not E"? |
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Answer» 0.55 0.55 P(E) + P( not E) = 1 then0.45+ P(not E) =1P(not E)= 1- 0.45P(not E)= 0.55 For any event P(E) + P(not E) =10.45+P(not E) =1P(not E) =0.55 |
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| 14161. |
Express all trigonometry ratios in the form of sin A |
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Answer» Cos A,tan A, cot A,sec A ,cosecA Sin A |
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| 14162. |
What do you mean by median class |
| Answer» The class in which n/2 lies | |
| 14163. |
What do you mean by modal class |
| Answer» Class having highest frequency | |
| 14164. |
In figure AB// DC and AC , PQ intersect each other at the point O . Prove that OA. CQ=OC.AP |
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| 14165. |
Prove that 2(sin^6thitha+cos^6thitha)-3(sin^4thitha+cos^4thitha)+1 |
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Answer» I was testing for subscript sorry H_2SO_4 1 is the right answer.... |
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| 14166. |
3x—y—5=0 and. 6x—2y—p=0 find the value of (p) |
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Answer» P=10 this is dependent equation P=10 |
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| 14167. |
Why cbse didnot made basic and standerd in sst just like maths |
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Answer» Hahaha pdai honi hi nhi chaiye thi ....... Yes u r right Praying nahi Apka exam bhot achhhaaa hoga ?????? ? ??sahi hh!! Fir sci , computer , English and hindi.... Bura man jayenge n issliye...?? Hiii N jinnhone mmaths m basic liya h unko sst m standard lna compulsory hna chahiye tga Science ma bi Yah banana chahiye tha |
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| 14168. |
Prove that 2root3 is irrational number that give root2 is rational number |
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| 14169. |
What is the probability of getting red cards |
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Answer» 26/52 26/52=1/2 1/2 |
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| 14170. |
Altitude means |
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Answer» Perpendicular line drawn from a vertix of triangle to opp. Side Height ? |
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| 14171. |
Find the circumference of circle whose area is 154 |
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Answer» Area of circle = πr^2 = 154cm^2r = 7cm (π=22/7)Circumference of circle = 2πr = 2 × 22/7 × 7 = 44 cm ? Totally right ans. Circumferemce = 2πr = 2 × 22/7 × 7 = 44 Implies r = 7 r² = 49 r² = 154 ×7/22 πr² = 154 Area = 154 |
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| 14172. |
Tommmorow is my maths exam .... I am very nervous... |
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Answer» Tq to all of u.yrrr Ooo so nyc compilation. Mine also ? Don\'t be nervous. Be confident and believe in urself..I\'m sure you will give your excellent performance in the examination. Where are u from Don\'t worry sis!?All the best? Same here |
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| 14173. |
If two vertices of an equilateral triangle be(0,0) , (3,√3), find the third vertex. ? |
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Answer» Oh Hanji Maths Subject btao? Overloaded hu?kl xm h ????? Kesi ho? Hlww Hi Nope its first equation 6x + 2√3y = 12 or 3x + √3y = 6 -----(i) Thanx:) solving it,x² + y² = x² -6x + 9 + y² - 2√3y + 3 Oh I got it? The triangle is equilateral so √(x-0)²+(y-0)² = √(x-3)²+(y-√3)² Let the cordinates be x,y U can solve it by distance firmula ? Its oral question! Answer is 3,-√3 |
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| 14174. |
tanA÷1-cotA +cotA÷1-tanA |
| Answer» Ans - 1+Sec A . Cos A | |
| 14175. |
If sum of n term is m and sum of m term is n than prove that sum of m+n term is equal to -(m+n) |
| Answer» Let a be the first term and d be c.d. of the A P .ThenSm=nn= m/2{2a+ (m-1) d} 2n= 2am+ m ( m-1)d. ........(1)AndS n= mm= n / 2{2a+ (n-1) d}2m = 2an+ n (n-1) d. ...........(2)Subtracting eq.(2)- (1), we get2a (m -1) + { m ( m - 1)- n ( n-1)}d = 2 n - 2 m2a (m-n) + {(m ^ 2-n ^ 2) - ( m-n ) }d = -2(m-n)2a + (m+n-1) d = -2. [On dividing both sides by ( m - n)]………(3) Now,Sm + n = m + n / 2{2a + (m + n - 1) d}Sm + n = m + n / 2 (-2) ………[using (3)]Sm + n= - ( m + n)Hence Proved.\xa0 | |
| 14176. |
Cos60= |
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Answer» 1/2 1/2 cos60⁰ = 1/2 |
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| 14177. |
What is full form of c.p.c.t |
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Answer» Coresponding part of congruent triangle Corresponding parts of congruent trianglee Corresponding parts of congruenT triangles... Corresponding parts of congruence traingle... |
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| 14178. |
What is C.P.C.T |
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Answer» Corresponding parts of congruent triangles Corresponding parts of congruent triangle |
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| 14179. |
Write one rational and irrational number lying between 0.25 and 0.32. |
| Answer» Rational number - 0.2845 and Irrational number - 0.26266266626666...... | |
| 14180. |
Standard maths k mcqs me explaination ki nhi need hai kya?? |
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Answer» becoz mcqs 1mark ke hi hote h.... explanation ki jrurt ni .... no need to explain it? |
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| 14181. |
Tan A÷1-cotA+cotA÷1-tanA=1+secA×cosecA |
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| 14182. |
What is empirical formulae |
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Answer» 3 median = mode + 2 mean 3Median = Mode + 2Mean ? |
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| 14183. |
How to find the positive real root of the equation 81x square -1=0 |
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Answer» = 81xsq.-1= (9x)sq.-(1)sq.= (9x+1)(9x-1)= x=-1/9 & 1/9Positive real root = 1/9 1/9 |
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| 14184. |
What is the difference between class size and class mark |
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Answer» Hmm? Class size means upper limit -lower limit of the CI. Class mark means upper (limit +lower limit )/2 |
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| 14185. |
Anyone preboard is going on |
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Answer» Yes Yes ... Pre board toh har week meein hote hain hamare ? No Hlw No.. From 21st jan Nope.. Nope |
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| 14186. |
11 is divided by 2 ki power 2 multiply 5 |
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Answer» Hlw 2×2×5=2020)11 (0.55 0.55 0.11 |
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| 14187. |
Iupac ...? |
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Answer» ????? Hey iupsc is in science Sab so jao...raat bht h.....accha.good night...to.all.and take care........ Diku gyi k ?dhanyvad... Suprabhat.. Diku aapko bhi sona h kya ?? Jao.. Lekin pyaar s to bolo... Gn sojao ??? Jau sone? Ek insaan ko neend aa rahi hh!! Aur ap dono usse bol rahi ho ki... Attitude dikha rahi hu... Ab neend aa rahi h ... Toh sone hi jaungi... School toh jaungi nahi! ??\u200d♀️ Suhu ???etna gussa theek n h... Apki bestie aapse baat krrhi h or aap attitude dikha rhe Ho.. Baat tk ni krrhe... Jao sone m aapse katti ??? Dear suhu btao n kya hua mele pikachu ko ?? Bye! M sone ja rahi hu.. Haan suhu ab online bhi bhot rare aati h Kuch ni! Suhu upset h aaj ??? Mjama..? Correct International union of pure and applied chemistry |
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| 14188. |
The number of polynomials having zeroes are -2 and 5 is |
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Answer» Quadratic polynomial More than 2 More than 3 |
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| 14189. |
The least number that is divisible by all numbers from 1 to 10 (both inclusive ) is |
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Answer» Take the lcm of all numbers from 1 to 10. You can use a trick - multiply highest degree of all numbers. That is , if 1 is coming one time , two is Maximum coming 3 times...like this.You will get 2520 2520 2520 |
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| 14190. |
What is the probability of having 52 sundays in a leap year |
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Answer» 5/7 2/7 A non-leap year has 365 daysA year has 52 weeks. Hence there will be 52 Sundays for sure.52 weeks = 52 x 7 = 364 days .365– 364 = 1day extra.In a non-leap year there will be 52 Sundays and 1day will be left.This 1 day can be Sunday, Monday, Tuesday, Wednesday, Thursday,friday,Saturday, Sunday.Of these total 7 outcomes, the favourable outcomes are 1.Hence the probability of getting 53 sundays = 1 / 7.∴ probability of getting 52 sundays = 1 - 1/ 7 = 6 / 7. |
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| 14191. |
22 (_23) |
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| 14192. |
If ashamed present age is 2 more than the square of her daughter nisha age |
| Answer» Let ashmed present age be = x So her daughter nisha age is xsquare+2 | |
| 14193. |
What is the volume formula of frustum |
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Answer» 1/3πh(r1+r2+r2r2 1/3πh[r×r+R×R+r×R] Cut a right circular cone with a plane parallel to the base of the cone, then the solid shape between the plane and the base of the cone is called the frustum of a cone.Volume of the frustum of a cone = (1/3) πh (r12 + r22 + r1 r2) 1/3*3.14*h(R2+r2+Rr) |
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| 14194. |
Roots of eq. x^2 - 3x - m(m+3)=0 where m is a constant. Anyone??? |
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Answer» It general equation is ax^2+ bx + c where a= 1, b= _3 c =m( m+3) The root of the equation are m and m+3 |
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| 14195. |
Show that products of three consecutive natural number is divisible by 6 |
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Answer» 3×4×5=60 this is a products of three consecutive natural number:60 is divisible by 6 Thanks Let us take 3 consecutive number 3,4,5Product of the number is 3×4×5=6060 is divisible by 3 |
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| 14196. |
How to find zeroes of the biquadratic polynomial? |
| Answer» We have seen that a quadratic polynomial is of the form:p(x):ax2+bx+c,a≠0,We assume that a, b and c are real numbers. In general, this polynomial has two zeroes. For example, the polynomial p(x):x2−3x+2 has the zeroes x=1,2.For some quadratic polynomials, the two zeroes might be equal. For example, the polynomialp(x):x2−4x+4can be rewritten as p(x):(x−2)2. Thus, we can say that this polynomial has the two zeroes: x=2,2,which happen to be identical.There might also be quadratic polynomials which have no real zeroes. Consider the polynomial p(x):x2+1. For no real value of x can this polynomial take zero value, which means that this has no real zeroes. Note that this does not mean that the polynomial does not have any zeroes. Of course this polynomial has (two) zeroes – however, those zeroes are just not real numbers. | |
| 14197. |
What is the difference between polynomial and equation |
| Answer» Equation has LHS and RHS but doesn\'t have. In equation there are two polynomial one in LHS and one in RHS. Ex:- Equation=> 2x²+5x=3. Polynomial=> 2x²+5x+3 | |
| 14198. |
Basic porptionality therom class 10? |
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Answer» If a line drawn parallel to third side dividing two lines into same proportion is known BPT B.P.T therom |
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| 14199. |
Chart of real number |
| Answer» Answer jaldi dado | |
| 14200. |
What do you understand by trigonometry |
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Answer» All trignometric ratios and identities SinA cosA tanA cosecA secA cotA |
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