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If a cos (x+alpha) = b cos (x-alpha), prove that (a+b) tan x =(a-b) cot alpha.

If a cos (x+alpha) = b cos (x-alpha), prove that (a+b) tan x =(a-b) cot alpha.

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
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