Question

Find 'x' if 2^-3 = 1/2^x

Answer 1

Answer:

Correct option is

A

3

we know that,

∵a

−m

=

a

m

1

so,

2

x

1

=2

−x

⟹2

−3

=2

−x

as bases are equal

so, powers are equal

⟹x=3.