Question
Mathematics Question on Continuity and differentiability
dxd(tan−1(1+xax−a)), x, a>0, is
A
tan−1x+tan−1a
B
1+x1
C
1+x1+1+a1
D
2x(1+x)1
Answer
2x(1+x)1
Explanation
Solution
Answer (d) 2x(1+x)1
dxd(tan−1(1+xax−a)), x, a>0, is
tan−1x+tan−1a
1+x1
1+x1+1+a1
2x(1+x)1
2x(1+x)1
Answer (d) 2x(1+x)1