Prove cos (x - n) = -cOS X.
cos (x - 7) = cos x sin n - sin x cos n = -cos X
cos (x - n)...
Mathematics, 21.05.2020 13:57 ineedhelp2285
Prove cos (x - n) = -cOS X.
cos (x - 7) = cos x sin n - sin x cos n = -cos X
cos (x - n) = cos x cos n - sin x sin n = -cos X
cos (x - n = cos x sinn + sin x cos n = -cos X
cos (x - n) = cos x cos n + sin x sin n = -cos x
Answers: 2
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