Question

\( f(x)=\left\{\begin{array}{l}2 x, x>3 \\ x^{2}, x \leq 3\end{array}\right\}, \quad f(1)+f(-2)=? \)

Answer 1

f(x)=x² if x< 3

1<3 , -2<3

So, f(1) = 1² = 1f(-2) =  (-2) ​^{​​​​​2} = 4

​​​​​ ​​​​​.•. f​​​​​​​​​​​​​​(-1) +f(-2) = 1+4 = 5