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If tan α = 2 and α ∈ (pi,3pi/2) then the value of the expression cosα/sin 3 α + cos 3 α is equal to?

If tan α = 2 and α ∈ (pi,3pi/2) then the value of the expression cosα/sin3 α + cos3α is equal to?

Grade:12

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4407 Points
3 years ago
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