Question

Given g(n)-2n-5;f(n)=3n-4. Find (g°f)(-2n)

Answer 1

Given g(n)-2n-5;f(n)=3n-4. Find (g°f)(-2n)

Solution:

$(g \circ f)(-2n)=g(f(-2n))=g(3\cdot(-2n)-4)=g(-6n-4)=$

$-2(-6n-4)-5=12n+3$

Answer: $(g\circ f)(-2n)=12n+3$ .