Question

The value of $\frac{14a^7}{2a^7}$ is

• A. $1$
• B. $7$
• C. $14$
• D. $0$

Answer 1

The correct option is B $7$

$\frac{14a^7}{2a^7}=\frac{14}{2}\times \frac{a^7}{a^7}=7\times a^{7-7}$
$=7\times a^0=7\times 1=7$

$\underset{–}{\text{Note:}}\frac{a^m}{a^m}=a^{m-m}=a^0=1$