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In the formula 2cos(A/2) =±√(1 + sinA) ±√(1-sinA) find within what limits A/2 must lie when(i) The two signs are positive(ii) The two signs are negative(iii) One is positive and one negativeWithout squaring |
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Answer» In the formula 2cos(A/2) =±√(1 + sinA) ±√(1-sinA) find within what limits A/2 must lie when (i) The two signs are positive (ii) The two signs are negative (iii) One is positive and one negative Without squaring |
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