/ 2 \ sec\2*x - 1/
d / / 2 \\ --\sec\2*x - 1// dx
Rewrite the function to be differentiated:
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Let .
The derivative of cosine is negative sine:
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
The result of the chain rule is:
Now simplify:
The answer is:
/ 2 \ / 2 \ 4*x*sec\2*x - 1/*tan\2*x - 1/
/ 2 2/ 2\ 2 / 2/ 2\\ / 2\\ / 2\ 4*\4*x *tan \-1 + 2*x / + 4*x *\1 + tan \-1 + 2*x // + tan\-1 + 2*x //*sec\-1 + 2*x /
/ 2/ 2\ 2 3/ 2\ 2 / 2/ 2\\ / 2\\ / 2\ 16*x*\3 + 6*tan \-1 + 2*x / + 4*x *tan \-1 + 2*x / + 20*x *\1 + tan \-1 + 2*x //*tan\-1 + 2*x //*sec\-1 + 2*x /