jdkrisdaimcc11
30.04.2021 •
Mathematics
I need help fast plzzzzz
No link or you will not be brainliest
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Ответ:
The angles formulas are used to find the measures of the angles.
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Double Angle Formulas
sin 2A = 2 sin A cos A (or) (2 tan A) / (1 + tan2A)
cos 2A = cos2A - sin2A (or) 2cos2A - 1 (or) 1 - 2sin2A (or) (1 - tan2A) / (1 + tan2A)
tan 2A = (2 tan A) / (1 - tan2A)