Guys please answer this. Im in dire need of your help! ):

why can we write 1/a^n=a^-n?

Step-by-step explanation:

~Math Induction

—Prove that n = 1

—Prove that n = k

—Prove that n = k + 1

Proved that 1/a^n = a^-n

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

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