Images COS PI B

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Cos pi b. Cos(b+3pi). 3cos(Pi-b)+sin(Pi/2+b). Cos(-Pi-b)-3sin(-3pi/2 + b). 3cos Pi b sin Pi/2 b cos b 3pi.
Cos(b+3pi). 3cos(Pi-b)+sin(Pi/2+b). Cos(-Pi-b)-3sin(-3pi/2 + b). 3cos Pi b sin Pi/2 b cos b 3pi.