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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.
| 5201. |
Perimeter area |
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| 5202. |
if |Z1+z2|=|z1-Z2| then value of ampZ1-ampZ2 |
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| 5203. |
What is terms? |
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| 5204. |
Find the centre and radius of the circle x^2+y^2-x+2y-3=0 |
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| 5205. |
In any triangle ABC prove that a square minus b square Court God she square is equal |
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| 5206. |
Using principle of mathematical induction prove2.7^n+3.5^n-5 is divisible by 24 |
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| 5207. |
Limx->2 (x^5 - 32/x^3 - 8) |
| Answer» Divide numerator and denominator of given function by (x-2) . Use standard limit for numerator as well as denominator , Lim x-->a ( X power n - a power n) /(x-a) = n * (a power (n-1)) | |
| 5208. |
How to prepared maths for final exam... |
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| 5209. |
Lim x->pie/2 tan2x/x-pie/2 |
| Answer» Tan 2/x-pie/2=π/2 | |
| 5210. |
How solve straight line miscellaneous 15 to 18 |
| Answer» Pl post questions.. | |
| 5211. |
Npr=720 and ncr =120 .find r |
| Answer» ncr= npr / r!120 = 720 / r! r! = 720 / 120 = 6 = 3*2*1 = 3!r = 3 | |
| 5212. |
If tan(πcosQ)=cot(πsinQ),then find the value of cos(π-π\\4) |
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Answer» Sin/cos (πcosQ)=cos/sin(πsinQ) cos (pi-pi/4)= cos (135)= - cos (45) = - (1/root 2) |
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| 5213. |
How can we download these maths videos to offline |
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| 5214. |
(1+x)² |
| Answer» (X+1)^2=(x+1)(x+1)=x=-1,-1 | |
| 5215. |
34Cr-2=34C2r-2 find r |
| Answer» r-2+2r-2 =34r=38/3r=12.6 | |
| 5216. |
if a,b,c are three sets ,then prove that : a-(b intersection ) = (a-b) union (a-c). |
| Answer» Use Venn diagram or consider some set values for a, b, c | |
| 5217. |
Find the sum of series (2^2+4^2+6^2+8^2+........to n terms |
| Answer» nth term of given series = an = square of (2n), Therefore, sn= a1+a2+a3+......+an= 4(sqr(1)+sqr(2)+sqr(3)+......sqr(n))Using identity , sum of square of n natural numbers = n(n+1)(2n+1)/6Sn= 4n(n+1)(2n+1)/6 | |
| 5218. |
÷25 2 power 3n-1 |
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| 5219. |
2 power 3n-1 |
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| 5220. |
If a, b, c, d are four distinct positive number in GP then prove that a+d > b+c. |
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| 5221. |
In cbse sample papers |
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| 5222. |
Can I get the solutions of sample paper paper 04 and sample paper 05 ...Of class 11 th mathematics |
| Answer» Where is sample paper 4 and 5 ? | |
| 5223. |
Find derivative of cosx by using first principle |
| Answer» -Sinx | |
| 5224. |
What is variance |
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| 5225. |
What do you mean by \'mutually exclusive event\'? |
| Answer» Have no common elements | |
| 5226. |
√2 irrational verify |
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Answer» Yes,since value is non-terminating & non-repeating. Yes |
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| 5227. |
X/(1+tanx) |
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| 5228. |
Lim. 4x*x-1X-1/2. 2x-1 |
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| 5229. |
Find domain and range of the real function under root 9-x² |
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Answer» Domain=[-3,3] ,range=[0,3] Domain={-3,3} range={0,3} |
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| 5230. |
(/3+/2)6_(/3-/2)6 evaluate |
| Answer» Take out 6 common.. Answer of bracket is 2 * root 2.. Final answer 12 root 2 | |
| 5231. |
Sin16A/16sinA =cosA cos 2A cos4A cos8A |
| Answer» Using Identity Sin 2x = 2 sin X cos X , Sin 16A = 2 sin 8A cos 8A = 2 ( 2 sin 4A cos 4A) cos 8 Expand in similar way for sin 4A and then sin 2A, You will get required answer.. | |
| 5232. |
Find the sum of n terms:- 5²+6²+7²+.....+20² |
| Answer» Sum of squares of first n natural numbers = n(n+1)(2n+1)/6Answer of given question = sum of squares of first 20 natural numbers - sum of squares of first 4 natural numbers | |
| 5233. |
e^√tan x |
| Answer» Lim. e^√tan(x+h)-e^√tanx upon hhtending to0Lim. e^√tanx(e^√tan(x+h)-√tanx -1)upon h e^√tanxAnswer is e^√tanx*sec^2x/2√tanx | |
| 5234. |
Sin x upon under root x |
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Answer» Sinx/√x=sinx × √x/x=√x Not defined |
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| 5235. |
Sina/ |
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| 5236. |
Prove that tan6tan42tan66tan78=1 |
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| 5237. |
A=(x,y):x3+y3=25 where x,y€w) |
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| 5238. |
Differentiate (X)2+cosx÷sinx with respect to x |
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| 5239. |
Trigonometry fomulas |
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| 5240. |
If sin 9thitha =sin thitha ,then the value of thitha will be ,if thitha is even . |
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| 5241. |
Lim x_.tjwdg |
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| 5242. |
Probability more best extra questions |
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| 5243. |
Derivation of xsinx by first principle |
| Answer» Dy/dx=x×d(sinx)/dx+sinxd(x)/dx= Xcosx+sinx..... Becaused(sinx)/dx=cosx anddx/dx=1 | |
| 5244. |
X sin 1/x |
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| 5245. |
Limit x tends 0 xsin1/x |
| Answer» Is the ans 1. ??? | |
| 5246. |
Sec4x-sec2x=2 |
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| 5247. |
√xsin√x |
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| 5248. |
Sin squared x |
| Answer» Lim sin^2x+h-sin^2x upon hhtending to0Lim. Sin2x+h.sinh upon h. (sin^2A-sin htending to 0. =sin2x | |
| 5249. |
What is the derivative of a^x ,a is constant |
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| 5250. |
How to convert 6 radian to degree measure |
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Answer» We know that the formula for degree measure =180\\π ×degree measure put the value in this formula Multiply by 180÷π |
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