Differentiation Question 79
Question: The derivative of tanx - x with respect to x is
[SCRA 1996]
Options:
A) $ 1-{{\tan }^{2}}x $
B) tan x
C) $ -{{\tan }^{2}}x $
D) $ {{\tan }^{2}}x $
Show Answer
Answer:
Correct Answer: D
Solution:
$ f’(x)={{\sec }^{2}}x-1={{\tan }^{2}}x $ .