wouldn't it be 1/2f(2x) and do you have to do anything else to solve for what it equals like f(x)=10 in the first part, how do you find what f(2x) equals?
wouldn't it be 1/2f(2x) and do you have to do anything else to solve for what it equals like f(x)=10 in the first part, how do you find what f(2x) equals?
Why don't you try this for yourself?
The is simple algebra, $\displaystyle \int_0^2 {2f(2x)dx} = \int_0^2 {f(2x)\left( {2dx} \right)} $.
If $\displaystyle \int_a^b {f(t)dt} = C$ THEN $\displaystyle \int_{u(a)}^{u(b)} {f(u)du} = C$