Question

cosx=x^2. Solve for x.

Answer 1

does this involve complex numbers?

Answer 2

no

Answer 3

I think you can use a calculator

Answer 4

Also |x| should be as small as possible

Answer 5

Is this some numerical approximation method?
I really don't know how to solve this by hand

Answer 6

can you solve it with a calculator?

Answer 7

I don't know how a regular calculator would help. Wolfram Alpha though can solve it :) http://www.wolframalpha.com/input/?i=cos%28x%29%3Dx%5E2

Answer 8

Perhaps I am supposed to graph the two...

Answer 9

By hand that still won't help to get an exact answer. Is this part of a solution you found or is this the complete question

Answer 10

That is the complete question. I think I am supposed to use a graphing calculator to graph and then find the intersection.

Answer 11

Ok maybe. I don't know I never owned a graphing calculator :o