Question

NEED HELP ASAP GIVING BRAINLIEST!!!!!!!!!!!!!!!!!!

Answer 1

Answer:

option D

Step-by-step explanation:

$sin^2 ( \frac{3\pi}{2}) + cos^2(\frac{3\pi}{2}) = 1\\\\( -1)^2 + 0^2 = 1$

Explanation:

$sin x = cos( \frac{\pi}{2} - x)\\\\sin(\frac{3\pi}{2}) = cos ( \frac{\pi}{2} - \frac{3\pi}{2})$

            $=cos(\frac{\pi - 3\pi}{2})\\\\ =cos(\frac{2\pi}{2})\\\\=cos \ \pi\\\\= - 1$

Therefore ,

               $sin^2( \frac{3\pi}{2}) = ( - 1)^2$