If cosA = x, then x is
If cosA = x, then x is
1). $√(1 - cos^{2}A)$
2). $√(1 + sin^{2}A)$
3). $√(1 + cos^{2}A)$
4). $√(1 - sin^{2}A)$
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option 4 is the correct answer as per the answer key
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