Fill the blank ___sinb=(1)/(2)[sin(a+b)-sin(a-b)] There are no answer choices
1 answer:
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Given:
To find:
The .
Solution:
In circle B, is central angle and
is inscribed angle from two points A and C.
According to central angle theorem, central angle is always twice of inscribed angle.
[Central angle theorem]
Divide both sides by 2.
Therefore, .