psgeddings psgeddings

14-07-2016
Mathematics

contestada

Find the angle measure that makes the statement true. Sin 25 = Cos ___

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HomertheGenius HomertheGenius

25-07-2016

sin α = cos ( 90° - α )
sin 25° = cos 65°
Thank you.

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Edufirst Edufirst

26-07-2016

sin (25°) = cos (65°)

That is because there is an identity that establishes that the sin (x) = cos (90 -x), and 25 = 90 - 65

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