Answer:
Option B is correct that is [tex]4a^{10}b[/tex]
Step-by-step explanation:
Given Expression: [tex]\frac{4\times b}{a^{-10}}[/tex]
We have to simplify the Given Expression.
We use the following law of exponent,
[tex]x^{-a}=\frac{1}{x^a}[/tex]
Consider,
[tex]\frac{4\times b}{a^{-10}}[/tex]
[tex]=4\times b \times a^{10}}[/tex]
[tex]=4a^{10}b[/tex]
Therefore, Option B is correct that is [tex]4a^{10}b[/tex]
