rachel63892
21.03.2021 •
Mathematics
Show that sin( + 180°) + 2 cos( − 360°) − sin( − 180°) = 2x
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Ответ:
Example 1: Change sin 80° cos 130° + cos 80° sin 130° into a trigonometric function in ... Example 2: Verify that cos (180° − x) = − cos x ... Example 7: Verify that sin (360° − x) = − sin x.
Ответ:
diya tha na kl answer