Question

Which statements are NOT true?

(a)
`√(16) = 4`
(b)
`(-4)^(2) = 16`
(c)
`2^(-2) = -4`
(d)
`8^(2) = √(64)`

Answer 1

Explanation:

`{2}^( - 2) = \frac{1}{ {2}^(2) } = (1)/(4)`

but it's given = -4

which is incorrect

Again , 8^2 = 64

but it's given = √64

so option C and D are not true