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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.
| 23151. |
(1- COS SQUARE A)cosec square a |
| Answer» [1-cos square a]cosec a (Sin square a)cosec a(1÷cosec square a)cosec a(1÷cosec a)(Sin a | |
| 23152. |
2x+3y=4;(k+2)x+6y=3k+2 find the value of k if there exists unique solution |
| Answer» {tex}2x + 3y - 4 = 0{/tex}{tex}a_1= 2, b_1= 3, c_1 = 4{/tex}{tex}(k + 2)x + 6y-(3k + 2)= 0{/tex}{tex}a _ { 2 } = k + 2 , b _ { 2 } = 6 , c _ { 2 } = - ( 3 k + 2 ){/tex}{tex}\\frac { a _ { 1 } } { a _ { 2 } } = \\frac { b _ { 1 } } { b _ { 2 } } = \\frac { c _ { 1 } } { c _ { 2 } }{/tex}or, {tex}\\frac { 2 } { k + 2 } = \\frac { 3 } { 6 } = \\frac { 4 } {- 3 k - 2 }{/tex}Or, {tex}\\frac { 2 } { k + 2 } = \\frac { 3 } { 6 } {/tex}or,\xa0{tex}3(k + 2) = 2 \\times 6{/tex}{tex}3k + 6 = 12{/tex}{tex}3k = 12 - 6{/tex}or,\xa0{tex}6 = 3k{/tex}Hence,{tex} k = 2{/tex} | |
| 23153. |
Area of 4walls |
| Answer» ★If the 4 walls are square in shape, then find out the L.S.A. of cube=4a².★If the 4 walls are rectangular in shape, then find out the L.S.A. of cuboid=2h(l+b). | |
| 23154. |
What is the difference between chord and secant..?Frnds..Plz tell me.. |
| Answer» A line segment which touches the circle at two points is called chord whereas a line which passes intersecting the circle at two points is called secant. | |
| 23155. |
For any positive integer n, prove that n^3 - n is divisible by 6. |
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Answer» Value put karke dekhni padegi Bhai mere ko bhi eska answer jaanna hai agar pataa chal jaye too mere ko bhi bataa dena please...... |
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| 23156. |
The side of square is 10 cm then the area of inscribed circles |
| Answer» Radius of circle =5√2cm;area of circle=πr2=3.14*5√2*5√2=100*3.14=314cm2 | |
| 23157. |
If √3 sin theta,find the value of. sin theta. Tan theta (1+cot theta)/sin theta +cos theta |
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Answer» Hmmm sin theta=1/√3;sin2theta+cos2theta=1;cos2theta=2/3;cos theta=√2/√3;now,sin theta.tan theta(1+cot theta)/sin theta+cos theta;=1/√3(sin theta/cos theta+sin theta/cos theta*costheta/sin theta)/1/√3+√2/√3;=1/√3(1/√3/√2/√3+1)/1+√2/√3; =1/√3(1/√2+1)/1 /√3(1+√2);=(1+√2/√2)/(1+√2);=1/√2(1+√2)/(1+√2);=1/2 |
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| 23158. |
CBSE class ten question paper with solution mathematics in 2014 |
| Answer» | |
| 23159. |
CBSE class 10 question paper with solution I 2014 |
| Answer» | |
| 23160. |
Prove that there many prime no. exist? |
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| 23161. |
100x square - 20x + 1 = 0 |
| Answer» 100x²-(10+10)x+1=0100x²-10x-10x+1=010x(10x-1)-1(10x-1)=0(10x-1)(10x-1)=0x=1/10,1/10 | |
| 23162. |
Obtain all other zeros of the polynomial |
| Answer» Polynomial kahAn h | |
| 23163. |
Which type of decimal expansion area) rational or irrational |
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Answer» Irrational Non terminating r irrational and terminating r rational |
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| 23164. |
Bhcgvv |
| Answer» What??? | |
| 23165. |
Tan1°•tan2°•tan3°•------tan89°=1 prove |
| Answer» | |
| 23166. |
Prove that (sins+cosa)(sins+cosa)+(cosa+seca)(cosa+seca)=7+(tana*tana+cota*cosa) |
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| 23167. |
Prove the area of segment |
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| 23168. |
cbse 10th k liy oswaal paper kas h |
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| 23169. |
class 10th board k liy shivdas k paper best h kya |
| Answer» | |
| 23170. |
Maths question paper of year 2008 |
| Answer» You can check last year papers :\xa0https://mycbseguide.com/cbse-question-papers.html | |
| 23171. |
Trignometry kaise karooooo |
| Answer» Book se pdho !! Is mein bas concept hi nahi blki uska implementation bhi necessary hai !! Just practice it | |
| 23172. |
Sir how much marks is compolsory to pass in periodic test |
| Answer» 26.5/80 | |
| 23173. |
10time table |
| Answer» Not released yet.. | |
| 23174. |
What is phythagorus theorem |
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Answer» Hypotenuse square=base square +perpendicular square In a right-angled triangle, “The sum of squares of the lengths of the two sides is equal to the square of the length of the hypotenuse (or the longest side).” |
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| 23175. |
State and prove phythagorus theorem |
| Answer» Open ncert book it is proved..... Nonsense | |
| 23176. |
What is the formula of Frustom of a cone |
| Answer» 1/3 π R2\xa0H\' -1/3 πr2h. | |
| 23177. |
1.1 |
| Answer» | |
| 23178. |
How to construct triangle with altitude and base?? |
| Answer» Draw a base AB.Draw a perpendicular bisector CD.Cut an arc on CD of given altitude it\'s cut CD at E.Now joine A to E and then joine B to E. | |
| 23179. |
If cosA = 2/5 , find the value of 4+4 tan square A |
| Answer» 25. | |
| 23180. |
What is the formula of a+b ka whole cube + square |
| Answer» (a+b)^2=a^2+2ab+b^2. (a+b)^3=a^3 +b^3+ 3ab(a+b) | |
| 23181. |
For what value of k k- 3 , 2k + 1 ,and 4k+1 are in AP |
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Answer» 5 K=3.? |
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| 23182. |
Express HCF of 48 and 18 as a linear eqation |
| Answer» In the equation x and y are not unique.. | |
| 23183. |
Obtain all other zeros of the polynomial x4-x3-15x2+3x+36,if two of its zeros are root 3 and - root3 |
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Answer» -3, 4 4/3 and 9/2 (x+√3)&(x-√3)r 2 factors (√3&-√3r 2 0s)..(X+√3)(x-√3)=x²-3..now divide this with d given polynomial. |
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| 23184. |
Find CSA and TSA of a solid cone whose height is 28cm and radius is 21cm. |
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Answer» Csa of cone = π r l l\u200b\u200b\u200b\u200b\u200b\u200b2=(28)2+(21)2 l\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b2=784+441 l =√1225=35CSA of cone=22/7×21×35 =22×21×5 =2310sq cmTSA = π r(l+r) =22/7×21(35+21) = 66×56 =3696sq cm\xa0\xa0 CSA=2310 cm sq, TSA =3696 cm sq |
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| 23185. |
The volume of two hemisphere are in the ratio 8:7 . Find the ratio of their radii. |
| Answer» 8/7 | |
| 23186. |
How to Prove √5 to be irrational? |
| Answer» First assume root 5 as rational number where a and b are co-prime. Then square on both side and then show 5 as a common factor of a and b. So that prove will contradicts your assumption. Hence,root 5 is irrational. | |
| 23187. |
22×90 |
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Answer» 1980 1980 1980 |
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| 23188. |
Please anybody give me formulae for HP. |
| Answer» Hewlett Packard | |
| 23189. |
In trigometry |
| Answer» | |
| 23190. |
5÷4+16÷3-1÷4÷4 |
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| 23191. |
Find the zeroes of t^2-15 |
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Answer» t2\xa0-15 =0(t-√15)(t+√15)=0t= √15 and t= -√15\xa0 T^2 - 15root 0 will be +&- root15 |
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| 23192. |
The difference of rational and irrational number is |
| Answer» an irrational number | |
| 23193. |
Why 1*1*1*1*............infinitive, is not equal to 1? |
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| 23194. |
For what value of x the following points from a parallelogram (1,2)(-4,-3)(x,2)(2,3) |
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| 23195. |
Find the coordinates of point on y axis which is nearest To the point (-2,5) |
| Answer» (-1,5)or (-3,5).. | |
| 23196. |
Prove that root 11 is irrational number |
| Answer» | |
| 23197. |
Optional question come is board exam or not? |
| Answer» Check exam pattern here :\xa0https://mycbseguide.com/cbse-syllabus.html | |
| 23198. |
What is square root of 3382165216.3526 by long division method |
| Answer» 58156.3859 | |
| 23199. |
Hey gyss |
| Answer» Bol | |
| 23200. |
Guys u all are from where... I mean u all chat about... |
| Answer» So you all Eva, keshav and many more are from same school.. I mean school friends or else | |