Math, asked by GunturiSankar, 1 year ago

tan5°×tan30°×4tan85° = ?

Answers

Answered by sabtoshkumar11

11

tan(90-85)*tan30*4*tan85
=cot85*tan30*4tan85
=cot85*tan30*4(1/cot85)
=4tan30

GunturiSankar: Almost correct. 4/√3 is exact answer.

sabtoshkumar11: yaa that is the value of tan30

sabtoshkumar11: means tan30=1/root3

GunturiSankar: Yes

sabtoshkumar11: enjoy

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