Question

Evaluate:-
The ans. must be 1/18


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Answer 1

Answer:

this is they answer of you question

Answer 2

Answer:

(1/18)

Explanation :

Here -1 and -2 are the exponents.

→ ( 4-1 - 8-1 ) ÷ ( 2/3)-2

Here you have to inverse the number because there is a sign of reciprocal i.e -1 and -2

→ ( 1/4 - 1/8 ) ÷ ( 3/2 ) 2

→ ( 1/8 ) ÷ ( 9/4 )

→ ( 1/8 ) × ( 4/9 )

→ ( 1/2 ) × ( 1/9)

→ 1/18