If y=tan−111+x+x2+tan−11x2+3x+3 +ta...
Question
Check here step-by-step solution of 'If y=tan−111+x+x2+tan−11x2+3x+3 +tan−11x2+5x+7+…+ upto n terms, then y′ ′(0) is equal to' question at Instasolv!
Fullscreen

If ( y=tan ^{-1} frac{1}{1+x+x^{2}}+tan ^{-1} frac{1}{x^{2}+3 x+3} ) ( +tan ^{-1} frac{1}{x^{2}+5 x+7}+ldots+ ) upto ( n ) terms, then ( y^{prime} ) ( '(0) ) is equal to
(a) ( -1 /left(n^{2}+1right) )
(b) ( -n^{2} /left(n^{2}+1right) )
(c) ( n^{2} /left(n^{2}+1right) )
(d) none of these

JEE/Engineering Exams
Maths
Solution
75
Rating
4.0 (1 ratings)
If y=tan−111+x+x2+tan−11x2+3x+3 +tan−11x2+5x+7+…+ upto n terms, then y′ ′(0) is equal to
Fullscreen

Ans.
(b)
(@) Solution: ( y=tan ^{-1} frac{1}{1+x+x^{2}}+tan ^{-1} frac{1}{x^{2}+3 x+3}+ )

Quick and Stepwise Solutions Just click and Send Download App OVER 20 LAKH QUESTIONS ANSWERED Download App for Free