Question

Evaluate.
(-2/7) power -4​

Answer 1

Answer:

Step-by-step explanation:

Given that,

( - 2 / 7 )^ -4 (∵ " ^ " this symbol means " to the power of " )

= 1 / (- 2 / 7 )^4 (∵ a^-m = 1 / a^m )

= 1 / [ ( - 2 )^4 / ( 7 )^4 (∵ (a /b )^m = a^m / b^m )

= 1 / [ ( 16 ) / ( 2401 )

= 2401 / 16 is the answer.