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What is the value of tan 9+ tan 81- tan 27- tan 63 without using the values of sin18 or sin36 or sin54 or something like that. Reply as fast as u can plz:)

What is the value of tan 9+ tan 81- tan 27- tan 63 without using the values of sin18 or sin36 or sin54 or something like that. Reply as fast as u can plz:)

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
3 years ago
Dear student

1.84064397307 is the answer it is done without involving the mentioned terms

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