If f(= x tan-1x thenf'(1) = ……………………..
A. 1 + \(\frac { \pi }{ 4 } \)
B. \(\frac{1}{2}\) + \(\frac { \pi }{ 4 } \)
C. \(\frac{1}{2}\) – \(\frac { \pi }{ 4 } \)
D. 2
Answer:B
If f(= x tan-1x thenf'(1) = ……………………..
A. 1 + \(\frac { \pi }{ 4 } \) B. \(\frac{1}{2}\) + \(\frac { \pi }{ 4 } \) C. \(\frac{1}{2}\) – \(\frac { \pi }{ 4 } \) D. 2