Question

find the square of
√15-2​

Answer 1

Answer:

Calculate √15/2

The square root of (15/2) is the same as the square root of 15 divided by the square root of 2. You can divide the fraction inside the radical before or after you calculate the square root. The result will be the same.

Here we first calculate the square root of the numerator and the square root of the denominator separately, and then we divide the two:

√15

√2

≈

3.873

1.4142

≈ 2.7386

Alternatively, we first divide 15 by 2 and then do the square root of the quotient:

√15/2 = √7.5 ≈ 2.7386

Answer 2

Step-by-step explanation:

${ (\sqrt{15} - 2)}^{2} \\ ( { \sqrt{15}) }^{2} + {2}^{2} - 2( \sqrt{15)} (2) \\ 15 + 4 - 4 \sqrt{15} \\ 19 - \sqrt{15}$

This is your answer friend