Question

Simplify and write in exponential form with negative exponent ( 2/7 ) −2 × ( 2/7 ) 4 ÷ ( 2/7 )

Answer 1

Step-by-step explanation:

By using the formula (a

−n

=1/a

n

)

So,

(2/7)

−4

=(7/2)

4

=(7/2)×(7/2)×(7/2)×(7/2)

=2401/16