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Solve `4 cos^(2)x+6 sin^(2)x=5`. |
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Answer» Correct Answer - `x=n pi pm pi/4, n in Z` `4+2 sin^(2) x=5` or `sin^(2) x=1/2= sin^(2) pi/4` `rArr x=n pi pm pi/4, n in Z` |
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