Images COS PI B

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Cos pi b. 2cos 3pi b sin Pi/2 b. 3cos 2п-b 2sin п/2+b /2cos b+2п. 2cos 3pi b-sin(-Pi/2+b) / 5cos(b-Pi). 2cos(-3pi-b)+sin(-Pi/2+b)/3cos(b+Pi).
2cos 3pi b sin Pi/2 b. 3cos 2п-b 2sin п/2+b /2cos b+2п. 2cos 3pi b-sin(-Pi/2+b) / 5cos(b-Pi). 2cos(-3pi-b)+sin(-Pi/2+b)/3cos(b+Pi).