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`cos 2 theta = sin alpha` का व्यापक हल है-A. `theta = 2nx +- ((x)/(2) – (alpha)/(2))`B. `theta = (n pi + (-1)^(n)alpha)/(2)`C. `theta = n pi +- ((pi)/(4)- (alpha)/(2))`D. `theta = (pi)/(2) – (alpha)/(2)` |
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Answer» Correct Answer - C |
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