sin(18^circ)/cos(72^circ) – InterviewSolution

1.

sin(18^circ)/cos(72^circ)

Answer»

Sin18/ cos72= Sin( 90-18)/ Cos72= Cos 72/ Sin 72=1

1. is the correct answer of the given question.

sin(90-18)/cos72=cos72/cos72=1

Sin(90-72)/cos72cos 72/cos 72=1

sin18°/cos72°sin(90-18)/cos72°cos72°/cos72°=1

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