Find the derivative of y with respect to the appropriate variable
y=cos^-1(x^2)

a. Practically speaking, you compute the differential in much the same way you compute a derivative via implicit differentiation, but you omit the variable with respect to which you are differentiating.

Aside: Compare this to what happens when you differentiate both sides with respect to some other independent parameter, say :

b. This is just a matter of plugging

Step-by-step explanation:

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168

step-by-step explanation:

i am pretty sure that the answer is 168

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here