Question

cos (-theta)=(sqrt 7)/2 sin theta <0 what is the value of sin theta?
A. -(sqrt 2)/3
B. -(2 sqrt 7)/3
C. -(sqrt 14)/2
D. (sqrt 14)/7
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Answer 1

u see
\[\cos (-\theta) = \cos \theta ~~~and~~\sin(- \theta) = -\sin \theta\]

Answer 2

ok

Answer 3

@Lexi.babyy

Answer 4

@Nnesha

Answer 5

@FakeReality