1.

SinA(1+tanA)+cosA(1+cotA)

Answer» Sin (1+sin/cos) + cos (1+cos/sin)......sin(sin+cos/cos)+ cos (sin+cos/sin).... Sin+cos (sin/cos+cos/sin)...sin+cos(sin2+cos2/sincos).....= Sin+cos/ sincos= sec+cosec


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