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Problem If y = ( tan x ) x 2 y=(\tan x)^{x^{2}} y = ( tan x ) x 2 , then d y d x \dfrac{dy}{dx} d x d y equals
a) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 sec 2 x ) (\tan x)^{x^{2}}\left(2x\ln(\tan x)+x^{2}\sec^{2}x\right) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 sec 2 x )
b) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 sec 2 x tan x ) (\tan x)^{x^{2}}\left(2x\ln(\tan x)+x^{2}\dfrac{\sec^{2}x}{\tan x}\right) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 tan x sec 2 x )
c) ( tan x ) x 2 ( x 2 sec 2 x tan x ) (\tan x)^{x^{2}}\left(x^{2}\dfrac{\sec^{2}x}{\tan x}\right) ( tan x ) x 2 ( x 2 tan x sec 2 x )
d) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 cot x ) (\tan x)^{x^{2}}\left(2x\ln(\tan x)+x^{2}\cot x\right) ( tan x ) x 2 ( 2 x ln ( tan x ) + x 2 cot x )
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