a) If mAB 88°, then MACB = b) If mAB = 92° and C is the midpoint of major arc ACB, then mAC = B

Q: There's already a formula for this question. But I don't understand it. Can we not use the arc sin…

A: Explanation of the answer is as follows

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A: Answer is- -1/2 Explanation is given below....

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A: The terminal side of an angle θ in standard position lands in quadrant IV. cosθ = 1213

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A: Here we can solve these two question as below

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