Simplify and express the answer in the form

MATHEMATICS · Single correct · CBSE · Mathematics · Number Systems · Number Systems

Problem

Simplify

\displaystyle\frac{2^{5}\times 2^{-3}}{2^{-7}}

and express the answer in the form

2^{k}

. What is the value of

k

? (a)

2

(b)

-9

(c)

9

(d)

-5