The question asks

"If f(x)= x² + 10*sin(x), show that there is a number c such that f(c)=1000"

so its asking to solve for x when f(x)=1000 right?

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- Oct 7th 2009, 10:13 AMcolmexSOLVE FOR X with a sinx in it
The question asks

"If f(x)= x² + 10*sin(x), show that there is a number c such that f(c)=1000"

so its asking to solve for x when f(x)=1000 right? - Oct 7th 2009, 10:18 AM6DOM
- Oct 7th 2009, 04:02 PMawkward
Not exactly.

The problem is asking you to show a solution exists, but it does not ask you to find it.

Sometimes it is easy to show the existence of a solution but hard to actually find the solution. If you can find a solution, great-- that certainly proves its existence. - Oct 7th 2009, 07:25 PMcolmex
ohhhhhhhhhhhh okay

so how do i prove it? haha - Oct 7th 2009, 08:27 PMmr fantastic