Question

F(n) = n + 1
Find (f*f)(-9)

Solve work please

Answer 1

`(f * f)( - 9) = f( - 9) * f( - 9) \\ f(n) = n + 1 \\ f( - 9) = - 9 + 1\\ f( - 9) = - 8 \\ f( - 9) * f( - 9) = ( - 8) * ( - 8) \\ = 64`

Therefore the answer is 64