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28.01.2020 •
Mathematics
Find the indicated value. use either half angle formulas or sum and difference formulas.
sin15° =
tan75° =
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Ответ:
By the angle sum formula for tangents, we have:
.
Rationalizing the denominator gives as the final answer.
Ответ:
6.3×10-4=6.3×6=37.8