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11-01-2021
Mathematics

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suppose cos(A)= -0.3. Use the trig identity sin²(A) + cos²(A)= 1 to find sin(A) in quadrant II. round to ten-thousandth

a. -0.9276
b. -0.9348
c. 0.9154
d. 0.9539

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4PFLeavon 4PFLeavon

11-01-2021

The answer is b. Hope it helps

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