[" 22.If "8tan A=15," hind "sin A-cos A]...

[" 22.If "8tan A=15," hind "sin A-cos A],[" 23.If "3cos theta-4sin theta=2cos theta+sin theta," find tan "theta],[" 24.If "tan theta=(20)/(21)" ,show that "(1-sin theta+cos theta)/(1+sin theta+cos theta)=(3)/(7)]

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