Question

if sin 3/4 then cos is?​

Answer 1

Answer:

$\frac{ \sqrt{7} }{4}$

Step-by-step explanation:

$\sin(x) = \frac{3}{4} \\ \cos(x) = \sqrt{1 - { \sin(x) }^{2} } \\ = \sqrt{ 1 - \frac{9}{16} } = \sqrt{ \frac{16 - 9}{16} } = \\ \frac{ \sqrt{7} }{4}$

Answer 2

Answer:

$\frac{\sqrt7}{4}$

Step-by-step explanation: