Yefim S. answered 07/19/21
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5
(20)
Math Tutor with Experience
sin2x = 2sinxcosx = 2sinxcosx/(sin2x + cos2x) = 2cotx/(1 + cot2x) = 2·(17/4)/(1 + 289/16) = 136/305 =
0.4459
Fafa L.
asked 07/19/21(Please enter answer accurate to 4 decimal places.)
Yefim S. answered 07/19/21
Math Tutor with Experience
sin2x = 2sinxcosx = 2sinxcosx/(sin2x + cos2x) = 2cotx/(1 + cot2x) = 2·(17/4)/(1 + 289/16) = 136/305 =
0.4459
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