Question

Simplify and express the following in positive indices only:

1. (4^-2 X 4^-3)^4 ÷ 6^-6

2. (3^-1+ 4^-1) ÷ 5​

Answer 1

Answer:

1 . 6^6/4^20

2. 7/60

Step-by-step explanation:

1. (4^-2 X 4^-3 )^4 can be written as (4^-5)^4 which is equal to( 4^-20)

 ( 1/4^-20) /6^-6 can be written as 6^6/4^20

2.  3^-1 +4^-1 can be written as 1/3 +1/4=7/12

     (7/12)/5= 7/60