Question

please solve this one...​

Answer 1

Answer:

I also have doubt in this question

Answer 2

Answer:

$= a^{3 + ( - 10)}$

$= a^{ - 7} = \frac{1}{a^{7} }$

applying law

$a^{m} \times a^{n}$

$a ^{m + n}$

1. applying law