Math, asked by Deepesh952003, 1 year ago

tan10°cos20°tan40°tan50°cosec70°sec80°sin80°=1

Answers

Answered by zehn

14

tan10=sin10/cos10
cos20=sin70
tan40=cot50=1/tan50
cosec70=sin70
and sin80=cos10
put all the equations in quest. and the result will be 1

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