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sin 4 x sin 3 x-cos 4 x cos 3 x=... A. sin x D. cos 7 x B.

Saluran Edukasi
Saluran Edukasion 2024-05-10T08:09:08
sin 4 x sin 3 x-cos 4 x cos 3 x=... A. sin x D. cos 7 x B.
source: https://youtu.be/poirTfPERbk

sin 4 x sin 3 x-cos 4 x cos 3 x=... A. sin x D. cos 7 x B. cos (-x) E. -cos 7 x C. -cos x

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