Question

Q.No.4. Calculate the cube root of 64.​

Answer 1

`\huge\boxed{\sqrt[3]{64}=4}`

Explanation:

We know:

`√(a)=b\iff b^2=a\qquad\text{for}\ a\geq0\\\\\sqrt[3]{a}=b\iff b^3=a`

We have:

`\sqrt[3]{64}=4\ \text{because}\ 4^3=4\cdot4\cdot4=64`