Use induction to prove that d (n) = n(n+1)
2

Prove the statement is true for n=1

c. (3,2,6) is the answer.

i dont understand the question? ?

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

40 x 50 = 2000

step-by-step explanation: