What would you get for ? (Hint: You can probably copy the answer directly from your book. I am just asking you to write the formula for the Chain Rule.)
Recall that f'(tanx) = sec^2(x) = tan^2(x) +1
By defining suitable f(x) and g(x) such that f(g(x)) = x and using the chain rule, find the derivative of tan^-1(x) [this is the same as arctan x ] with regard to x
could you help me about this?
have a nice day.
"By defining suitable f(x) and g(x) such that f(g(x)) = x" means that f and g are inverse functions, right? So since you are given information about tan(x) and asked about . So what do you think "f" and "g" ought to be?