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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.
| 3601. |
F(x)=log 1-x/1+x. Prove that f(a)+f(b)=f[a-b /1+ab] |
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| 3602. |
We know that sum of interior angle of a triangle is 180 show that th |
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| 3603. |
Guys who want to talk to.me ? |
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| 3604. |
1/3.6+1/6.9+1/9.12+..+1/3n(3n+3)=n/9(n+1) |
| Answer» Step 1 put (n=1)L.H.S.1/3.6=1/18R.H.S.n/9(n+1)=1/9(1+1)=1/9.2=1/18Step 2 Let it be true for (n=k)1/3.6+1/6.9+1/9.12+...+1/3k(3k+3)=k/9(k+1)Step 3 Put (n=k+1)1/3.6+1/6.9+1/9.12+...+1/3(k+1)(3(k+1)+3)=k+1/9(k+1+1)=1/3.6+1/6.9+1/9.12+...+1/3k(3k+3)+1/(3k+3)(3k+6)=k+1/3(3k+6)L.H.S.=k/3(3k+3)+1/(3k+3)(3k+6)=1/3k+3(k/3+1/3k+6)=1/3k+3(3k^2+6k+3/3(3k+6))=1/3k+3((k+1)(3k+3)/3(3k+6))=1(k+1/3(3k+6))=k+1/3(3k+6)=R.H.S. | |
| 3605. |
Chapter 5 of Element of Mathematics ka Solution Kaha mela ga |
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| 3606. |
1+1???? |
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Answer» 2 ✌️? |
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| 3607. |
http://www.careeracademy.in/careerqbank//?file=469342iv35931518 |
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| 3608. |
Prove that 2×4×6×14... to n factors=(2n)!/(n)!=(n+1)(n+2)...to n factors |
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| 3609. |
word again arrange in dictionery and find its position? |
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| 3610. |
Cota-tana/cota+tana=cos2a |
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| 3611. |
What is difference between combination and permutation |
| Answer» Permutations is used when arrangements are to be done whereas combination is used when selection to be done. | |
| 3612. |
Prove that A. P=a+b/2 & G. M=√ab |
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| 3613. |
sin +cos= |
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Answer» Nope buddy... Sin²+cos² =1 1 1 Sin+cos=1 Sin+cos=1 |
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| 3614. |
Is {1,2,{3}} a subset of the set {1,2,{3,4},5}? |
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Answer» No {1,2,{3}} is not a sub set of {1,2,{3,4},5} No No No, {1,2,{3}} is not a subset of {1,2,{3,4},5}. |
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| 3615. |
Evaluate sin 105°+cos 105° |
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Answer» Sin 150=sin(45+60)Sin (a+b)=sin a cos b+cos a sin b=sin45×cos60+cos45×sin60=(1/root2×1/2)+(1/root2×root3/2)=1/2root2+root3/2root2=1+root3/2root2 Write 105° as (45+60)° and then use the formula sin(a+b) and cos(a+b) |
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| 3616. |
How we can say that -2×-2equals 4 |
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Answer» If we doing this song - and - cancel and 2 into 2 is equal to 4 - 2 x -2 is equal to 4 because while doing subtraction minus and minus cancel each other and two multiply two is four and hence -2 multiply -2 is equal to 4 -2*-2= -4 |
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| 3617. |
Tan2A-tanA=tanASec2A prove that |
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| 3618. |
7+8+7 |
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Answer» 22 It\'s 22 22 22 |
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| 3619. |
Cosec90 |
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Answer» Cosec 90 = 1 Cosec90 =1/sin90 So 1/1=1 Sorry,i thought that cos90 but its cosec 90 so,its answer is 1 Not defined /0 1 0 |
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| 3620. |
How many words can be formed from the letter of the word series with start with s and end with s |
| Answer» Firstly fix s in starting and s in the end i.e. s,_,_,_,_,s. So no. Of ways are 4! Then s can also change its position by 2! ways. So no. of ways are 4!/2! . | |
| 3621. |
Why sin is positive in 1st quadrant? |
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Answer» In first quadrant all the trigonometric values are positive because in first quadrant square of hypotenuse is always positive Because it increases from 0 to 1 |
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| 3622. |
All formula of tegonometri |
| Answer» Teri NCERT book m h | |
| 3623. |
For the line x + y=2√2The length of the perpendicular from the origin to the line |
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| 3624. |
If sinx=-5/13 and x lies in the 4Quadrant.Find sinx/2 ,cosx/2,tanx/2 |
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| 3625. |
Find the squareroot of 5-12i |
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| 3626. |
Why is 1 is neither prime or nor composite? |
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| 3627. |
Lim x tends to 0 tan3x/tan5x |
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| 3628. |
(2×+3×)2(2×+3×)2 |
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Answer» 25x (2×+3)(2×_3) |
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| 3629. |
Cos5A |
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| 3630. |
n(a u b) =25 , n(a) =12 ,n(a-b) =8 then find the number of elements in a n b |
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| 3631. |
Mod z is less than 4 then. Mod izplus3minus4is less than k what is the value of k |
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| 3632. |
Find the value of tan 13π/12? Please |
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Answer» 0.268 60 |
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| 3633. |
Sin 18 ° |
| Answer» 0.309 | |
| 3634. |
X^3+x^2- 4x-4 |
| Answer» -1,-2,2 | |
| 3635. |
Solve 1) √3sin theta minus cos theta =√2 |
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| 3636. |
Solve 1 ). Sin9theta =sin theta |
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| 3637. |
Find the irrational of root 3 |
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| 3638. |
Expain sandwich theorem. |
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| 3639. |
Find conjugate:-((1+i)^2n+1)/((1-i)^2n-1); n€N |
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| 3640. |
How to calculate sin inverse 1(0.5327) ? |
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| 3641. |
Weather 0 is less and equal to 12 |
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| 3642. |
Maths binomial 10A question is 22 |
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| 3643. |
Find the distance between (_2,4) (3,4)inclined at axies 60degree (sl loney book qestion) |
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| 3644. |
Cosa + cosb + cosc = 3 then find the value of sina + sinb + sinc |
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| 3645. |
How can we make a perfect trigonomatric equation. |
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| 3646. |
sin 2A/1+cos2A(cosA/1+cos2A) |
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| 3647. |
is there novel for these year the cantervilla of ghost . pls tell me anyone |
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Answer» ok No both the novels have been deleted from the syllabus. There is no novel for eleventh |
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| 3648. |
What is the valu of iota |
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Answer» √-1 √-1 -1 |
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| 3649. |
A train is travelling on curve of 700m radius at 14k/h .What angle will it turn in one minute |
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| 3650. |
tan 2x=2✓3/4 |
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