Question

simplify : [{(3/4) -² } ^5]-²​

Answer 1

Answer:

3/4-5-

-&-=+

3+5=8

4+5=9

8/9

Step-by-step explanation:

3/4 =8/9

Simply=5

Answer 2

Answer:

(3/4)²⁰

Step-by-step explanation:

[{(3/4)⁻²}⁵]⁻²

(a^m)^n= a^mxn- Law of exponents.

= {(3/4)⁻²} ⁵ˣ⁽⁻²⁾

= {(3/4)⁻²}⁻¹⁰

= (3/4)⁻²ˣ⁻¹⁰

= (3/4)²⁰

                  Hope it is helpful. Take care.