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Question

Evaluate each of the following

sin2 30o+sin2 45o+4 tan2 30o+12sin2 90o2cos2 90o+124cos2 0o

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Solution

sin2 30o+sin2 45o+4 tan2 30o+12sin2 90o2cos2 90o+124cos2 0o


=(12)² + (12)² + 4×(13)² + 12×1² - 2×0 + 124×1

=14 + 12 + 43 + 12 + 124

=6324


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