________ / 2 \/ x - 1 ----------- x
sqrt(x^2 - 1)/x
Apply the quotient rule, which is:
and .
To find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
The result of the chain rule is:
To find :
Apply the power rule: goes to
Now plug in to the quotient rule:
Now simplify:
The answer is:
________ / 2 1 \/ x - 1 ----------- - ----------- ________ 2 / 2 x \/ x - 1
2 x -1 + ------- _________ 2 / 2 2 -1 + x 2*\/ -1 + x - ------------ - ------------ + -------------- _________ _________ 2 / 2 / 2 x \/ -1 + x \/ -1 + x ---------------------------------------------- x
/ 2 2 \ | x x | |-1 + ------- _________ -1 + ------- | | 2 / 2 2 | | -1 + x 2*\/ -1 + x 2 -1 + x | 3*|------------ - -------------- + --------------- + ---------------| | 3/2 4 _________ _________| |/ 2\ x 2 / 2 2 / 2 | \\-1 + x / x *\/ -1 + x x *\/ -1 + x /