Find (g◦f)(x), if $f(x)=5x$ and $g(x)=-x^2+1$.

Find (v◦w)(x), if $v(x)=5x+1$ and $w(x)=3x-2$.

Find (w◦v)(x), if $v(x)=5x+a$ and $w(x)=3x-b$.

Find (g◦f)(x), if $f(x)=\sin\sin x$ and $g(x)=3x^2$ .

Is the sentence true or false?

If $v(x)=ax^2+bx$ and $w(x)=bx-2$ ,

then (w◦v)(x)= (v◦w)(x).

Find (v◦w)(x), if $v(x)=5x+a$ and $w(x)=3x-b$ .

Find (f◦g)(x), if $f(x)=5x$ and $g(x)=-x^2+1$.

Find (f◦g)(x), if $f(x)=\sin\sin x$ and $g(x)=3x^2$.

Find (v◦w)(x), if $v(x)=5x+2$ and $w(x)=3x^2-2$ .

Find (v◦w)(x), if $v(x)=5x^2+x$ and $w(x)=3x$.