Math, asked by laxman63, 1 year ago

tan36°+tan9°+tan36°×tan9°=1 prove it

Answers

Answered by AnandPrakashThakur

13

tan 45=1
45=36+9
tan 36+9=1=tan36+tan9/1-tan36tan9
so,tan36+tan9=1-tan36tan9
so,tan36+tan9+tan36 tan9=1

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