Which of the following simplifications is correct?

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

Problem

Which of the following simplifications is correct? (a)

(c^{2})^{3}=c^{5}

(b)

(3e)^{2}=3^{2}e

(c)

\dfrac{b^{7}}{b^{3}}=b^{4}

(d)

d^{5}\times d^{2}=d^{10}