cos x - sin (270-x) + cos (180+x) + sin (270+x) = a. 0 b.
Saluranedukasion 2024-04-19T01:42:00.000Z
cos x - sin (270-x) + cos (180+x) + sin (270+x) = a. 0 b. Sin 2x c. -sin 2x d. Cos^2 x+sin^2 x e. Cos^2 x - sin^2 x
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