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Tanx*tan9°=tan15°*tan21°.Find all possible x.How to solve this one

Tanx*tan9°=tan15°*tan21°.Find all possible x.How to solve this one

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

Tan x = ( tan 15)*( tan 21)/( tan 9)

x = tan inverse ( tan 15)*(tan 21)/(tan 9)

x ~ 33
x = 33+ npi

Regards

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