Images 2 COS 3П B SIN

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2 cos 3п b sin. Cos(-2п-b)+3sin(-3п:2+b):2cos(b+3п). Cos 2pi/3. Cos(2p-b)-sin(-3 p/2)/2cos.
Cos(-2п-b)+3sin(-3п:2+b):2cos(b+3п). Cos 2pi/3. Cos(2p-b)-sin(-3 p/2)/2cos.

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