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Alexxx [7]
1 year ago
11

Help pls i dont understand how to do this :')

Mathematics
1 answer:
andriy [413]1 year ago
3 0

Answer:

7/8

Step-by-step explanation:

Use the Pythagorean Identity

( \sin(x) ) {}^{2}  + ( \cos(x) ) {}^{2}  = 1

Plug in

\frac{ \sqrt{15} }{8}

for cos x.

(\sin(x) ) {}^{2}  + ( \frac{ \sqrt{15} }{8} ) {}^{2}  = 1

( \sin(x) ) {}^{2}  +  \frac{15}{64}  = 1

( \sin(x) ) {}^{2}  =  \frac{49}{64}

\sin(x)  =  \frac{7}{8}

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