Question

find the value of (8^-1-9^-1)divide by (4^-1-9^-1)

Answer 1

Answer:

1/10

Step-by-step explanation:

[8^(-1) - 9^(-1)] / [4^(-1) - 9^(-1)]

= (1/8 - 1/9) / (1/4 - 1/9)

= (1/72) / (5/36)

= (1/72) × (36/5)

= 1/10

Hope this helps you

formula used:-

(1) a^(-n) = 1/aⁿ