Question

please help class 8 maths

Answer 1

Answer:

All of these questions can be solved using index laws:

1) 1/(125^1/3) = $\frac{1}{\sqrt[3]{125} }$ = 5

2) $121^\frac{3}{2} =(121^\frac{1}{2} )^3 = (\sqrt{121})^3 = (11)^3 = 1331$

3) (1/4)^(5/2)= $((\frac{1}{4})^\frac{1}{2})^5 = (\frac{1}{2})^5 = \frac{1}{32}$

Hope that helps :)

Step-by-step explanation: