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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.
| 14251. |
Prove that root 2+root 3 is an irrational no. |
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Answer» Yo Let √2 + √3 = (a/b) is a rational no.On squaring both sides , we get2 + 3 + 2√6 = (a2/b2)So,5 + 2√6 = (a2/b2) a rational no.So, 2√6 = (a2/b2) – 5Since, 2√6 is an irrational no. and (a2/b2) – 5 is a rational no.So, my contradiction is wrong.So, (√2 + √3) is an irrational no. |
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| 14252. |
Sin A + cos A = m then find COSEC A +Tan A = ? |
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| 14253. |
6.4 into 6.4 - 3.4 into 3.4 upon 6.4 - 3.4 is equal to what |
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Answer» 9.8 9.8 |
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| 14254. |
Sin +cos = |
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Answer» 1 ? |
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| 14255. |
If k 2k-k and 2k+1are succive terms find value of k |
| Answer» =2k-k+1=2k+1=k+1=2k+1=k=0 | |
| 14256. |
Diagnol of cone |
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Answer» Cone Please correct the question there are no any diagonal of coe L^2=r^2+h^2Ezpz |
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| 14257. |
Which term of AP 3,15,27,39.......is 120 more than its 53rd term? |
| Answer» a=3,d=12,an=53an= a+(n-1)dan53=3+(52)×12 =3+624=627 Now add 120.627+120= 747747=a+(n-1)d 747= 3+(n-1)12747-3=(n-1)12744/12=(n-1)62 =n-1n=62+1=63 term | |
| 14258. |
If sin A - cos A = √2 Then prove that, sin A + cos A = √2cos A |
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| 14259. |
If the sum of the squares of zeroes of the polynomial 6x2+x+k is 25/36,find the value of k? |
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| 14260. |
Can (x-7) be the remainder on the division if polynomial p(x) by (7x+2) justify your answer? |
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Answer» ?? (x-7) should not be a remainder of p(x)Step-by-step explanation:Given polynomial p(x)divisor = 7x+2,Degree of the divisor = 1,Remainder = x-7Degree of the remainder = 1/*We know that,Degree of the remainder is always less than the degree of the divisor .*/But ,Here ,Degree of the divisor = Degree of the remainder .Therefore,.(x-7) should not be a remainder of p(x) |
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| 14261. |
The LCM of two numbers is 1200.Which of the following cannot be their HCF |
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Answer» Its answer is 4 but how? That no. Who doesn\'t divide it completely Statement is incomplete |
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| 14262. |
If 3k - 1, |
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| 14263. |
Which shows are most prefer to watch on tv? |
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Answer» Big boss Big boss |
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| 14264. |
Evaluate Sin power6- cos power 6 |
| Answer» (Sin^3) ^2 - (cos^3) ^2 = (sin^3 +cos^3 ) (sin^3 - sin^3 ) | |
| 14265. |
Prove that root 6 is a irrational number????? |
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Answer» Let √6 be a rational number , then√6 = p÷q , where p,q are integers , q not = 0 and p,q have no common factors ( except 1 )=> 6 = p² ÷ q²=> p² = 2q² ................(i)As 2 divides 6q² , so 2 divides p² but 2 is a prime number=> 2 divides pLet p = 2m , where m is an integer .Substituting this value of p in (i) , we get(2m)² = 6q²=> 2m² = 3q²As 2 divides 2m² , 2 divides 3q²=> 2 divides 3 or 2 divide q²But 2 does not divide 3 , therefore , 2 divides q²=> 2 divides qThus , p and q have a common factor 2 . This contradicts that p and q have no common factors ( except 1 ).Hence , our supposition is wrong . Therefore , √6 is an irrational number. Dgtfgi |
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| 14266. |
The roots |
| Answer» ??? | |
| 14267. |
The number which come between root2 and root3 |
| Answer» 1.414114111 | |
| 14268. |
If x=a, y=b is the solution of the equations x-y=2 and x+y=4,then find the value of a and b. |
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Answer» A-3,b-1 Given, x=a and y=b.Given equations, x-y=2( assume it as equation 1)x + y = 4( assume it as equation 2)Equation 1+2,x-y = 2x+y = 4- - - - - - -2x = 6( y gets cancelled as there is a negative y and a positive y implies y-y=0)x = 6/2x = 3But x = a implies a =3substitute a in equation 1 (it can be substituted even in equation 2)x-y=23-y=2y=3-2y=1But y=b implies b=1Therefore, a=3 and b=1 |
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| 14269. |
The perimeter of a semicircle protractor is 36cm.find it\'s diameter |
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Answer» Perimeter of semicircle= πr + 2rperimeter is 36cm36 = 22/7r + 2r36 = 22r + 14r/736 = 36r/7r = 36 × 7/36r = 7Diameter = 2 × 7= 14 Diameter = 14 cm.. |
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| 14270. |
Surface area and volumes formulas |
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Answer» There are many types of formulaes for this chapter kindly tell which formula you want Which one formula |
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| 14271. |
Formula of surface area and volumes chapter 13 |
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| 14272. |
State and prove PGT and C.PGT |
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Answer» Do you mean Basic proportionality theorem and Pythagoras theorem P.G.T ??? From Which chapter??? |
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| 14273. |
Ex -14.1 q-9 |
| Answer» Use this app. Or go to google. | |
| 14274. |
Find the area of a triangle with vertices (0,4) ,(0,2)and (3,0) |
| Answer» 3 sq units | |
| 14275. |
(K+3)x2+3x2+3x+2=0 value of k |
| Answer» (K+3)×2+3×2+3x+2=02k+6+6+3x+2=02k+14+3x=02k=-14-3xK=-14-3x 1/2K=-7-3x/2Pur the value of k in eq 1 then you will get the answer | |
| 14276. |
Class 10 math sample paper chapter 15 |
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| 14277. |
Class math sample paper chapter 15 |
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| 14278. |
Basic ka pper ncert m se he aaega na |
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Answer» Only NCERT Haa bhai pura ncert se he hoga |
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| 14279. |
Activities of class 10th |
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| 14280. |
Prove that (1+cot A-cosec A)(1+tanA+secA)=2 |
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Answer» Lo prove ho gya (1+cosA\\sinA-1\\sinA) (1+sinA/cosA+1/cosA) (sinA+cosA-1/sinA)(cosA+sinA+1/cosA)SinAcosA+sin2A+sinA+cos2A+sinAcosA (sin2A+cos2A=1) +cosA-sinA-cosA-1/sinAcosA 2sinAcosA/sinAcosA2 |
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| 14281. |
6chapter question |
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| 14282. |
if sec theta + tan theta = p then find the value of codex theta |
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| 14283. |
In exercise 3.2 question no. 7, what will be the area of triangle so formed. |
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| 14284. |
1+cos A/sin A+sin A/1+cos A=2cosec A( prove that) |
| Answer» Adreqqwe to utha leyo for the delay in getting back to you and your family and friends is photo send karo deyo to utha Jo thank God I am not sure if you have received the message to the same pich to the inbox folder use to make the payment of the day | |
| 14285. |
What is the next number if the sequences 1 ,8 ,27 ,64,125 |
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Answer» 216 216... 216 |
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| 14286. |
What in the quadratic formula |
| Answer» x=-b+-√b^2-4ac/2a | |
| 14287. |
Please help me friends for better improvement in maths. Advice me some tips friends |
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Answer» Y thanks See sis ..time scheme of board....1 hrs for 4 marks...1 hrs for 3 marks questions.....1/2 hrs for 2 marks question...and 1/2 hrs for 1 marks ok Sis. Start from section d always First pre boards m mera time hi manage ni ho pya tha Ek mark k questions hi sabse jyada tym consume krte h If u want to solve rd..solve that question which r comes on board..it is enough Rd ? Yes totally rs also but abhi paper karlo its much more imp for tym management In perivious pattern 30 question came but in new 40 will come I think that rd is useful for us Matlb ?extra questions aayenge kyaa:( And no ran for rd and rs now..go with sample papers......learn to time management....in new pattern..10 question.will more than previous..... Abacus karlo lol Yes calculations are important Yes i cover Its not a rough. Make consiontrate....and improve basic calculation.. Ncert to december tak ho jani chahiye:) I cover complete ncert. Issa nahi hoga toh question paper du ka last year ka Thankx yaar Last mei sample paper karlo Ncert kar lo bass Firstly u take ncert..and go with it.....and no ran for rd and rs Agarwal....then u practice triangle and circle , construction..i think it is enough.....then ...in surface and area u cover ncert and specially practice...frustum of cone and ..mix question...then go with sample paper .. owswaal......ok....make a time table.....for maths...1 day 1 chapter...daily study 3 hrs maths ok Kitna hi practice karo m to kabhi bhi perfect nahi banuga Practice makes a perfect . |
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| 14288. |
What is the value of cos^2 (40-2x) -sin^2(50+2x) |
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| 14289. |
Find the lcm of the following polynomials a8-b8 and (a4-b4)(a+b) |
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| 14290. |
A pair of irrational numbers whose products is a rational number is |
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| 14291. |
Formula for volume of cone |
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Answer» 1/3πr2h ⅓πr²h...? |
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| 14292. |
Prove that under root 2 is an internal number |
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| 14293. |
Mode of following data ci above 30 above40 above 50 above 60 above 70 above 80 fi 34 30 27 19 8 2 |
| Answer» 65 | |
| 14294. |
Muze standard mathematics lena tha leken mistakes se basic de deya |
| Answer» Ap school m application de kr sahi kr wane ki koshish kroye... ? | |
| 14295. |
kisi ne standard maths opt ki??? |
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Answer» Yes,i love maths. But i will choose medical Meeee Mee too Mee2 ?? right bt thanks for motivation Me ?? mere se jyada tumhe vishvaas hai?? mere to school mein poocha hi nhi seedhe de di?? Haa ji |
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| 14296. |
ABCD is trapezium with AB//DC.IF ∆AED ~ ∆BEC then prove that AD=BC |
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| 14297. |
Ratio in which the line 3x+4y=7 divides the line segment joining the point(1,2) and (-2,1) is |
| Answer» 25 | |
| 14298. |
SinQ=a/b find tanQ |
| Answer» a/c | |
| 14299. |
How to determine the median class in a frequency ditribution ? |
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Answer» By The closest match of n\\2 in cf row by the help of cf |
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| 14300. |
Proove √3 is irrational |
| Answer» Let us assume that √3 is a rational number.then, as we know a rational number should be in the form of p/qwhere p and q are co- prime number.So,√3 = p/q { where p and q are co- prime}√3q = pNow, by squaring both the sidewe get,(√3q)² = p²3q² = p² ........ ( i )So,if 3 is the factor of p²then, 3 is also a factor of p ..... ( ii )=> Let p = 3m { where m is any integer }squaring both sidesp² = (3m)²p² = 9m²putting the value of p² in equation ( i )3q² = p²3q² = 9m²q² = 3m²So,if 3 is factor of q²then, 3 is also factor of qSince3 is factor of p & q bothSo, our assumption that p & q are co- prime is wronghence,. √3 is an irrational number | |