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Karthik Eyan Grade: 11
        

If a = 2pi / 7 radians , find the value of :


tan a tan 2a + tan 2a tan 4a + tan 4a tan a

7 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear karthik,


This question is very similar to the earlier one you posted. Use trigonometric ratios and identities.




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Sagar Singh


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7 years ago
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