1.

(sinA-sin2A)/(1-cosA+cos2A)​

Answer»

Step-by-step EXPLANATION:

=( 2sinAcosA)/ COS^(2)A. = 2sinA/cosA. =2tanA ... (2sinAcosA)/(1+2cos^(2)A-1)=(2sinAcosA)/ cos ^(2)A.



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