1.

(d)/(dx) {cos ^(2) [Tan ^(-1) (sin Cot ^(-1)) ]}=

Answer»

`2/((x^2 + 2)^2)`
`(2X)/((x^2+ 2)^2)`
`(x^2 + 1)/(x^2 + 2)`
`(-2x)/((x^2- 1)^2)`

ANSWER :B


Discussion

No Comment Found