Question

I will show you the pic

Answer 1

Answer: OPTION A

`\begin{gathered} Wearegivenanexpression,5^(-8)\cdot5^4 \\ =5^(-8)\cdot5^4 \\ \text{ According to the first law of indicies} \\ x^a\cdot x^b=x^{a\text{ + b}} \\ \text{Let x = 5, a = -8 and b = 4} \\ 5^(-8)\cdot5^4=5^{-8\text{ + 4}} \\ =5^(-4) \\ =\text{ }(1)/(5^4) \\ \text{The answer is OPTION A} \end{gathered}`