rove (1+cotx)2+(1−cotx)2=2csc2x rove cosxtanxsin2x(secx+cscx)=1+tanx
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rove (1+cotx)2+(1−cotx)2=2csc2x rove cosxtanxsin2x(secx+cscx)=1+tanx
rove (1+cotx)2+(1−cotx)2=2csc2x rove cosxtanxsin2x(secx+cscx)=1+tanx
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