Trigonometry! 26

Geometry Level 3

Simplify ( 3 + 2 cos A 1 2 sin A ) 3 + ( 1 + 2 sin A 3 2 cos A ) 3 \left (\frac {\sqrt{3} + 2\cos A}{1-2\sin A} \right)^{-3} + \left (\frac {1+2\sin A}{\sqrt{3} - 2\cos A} \right)^{-3}


This problem is part of the set Trigonometry .


The answer is 0.

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2 solutions

Ramiel To-ong
May 29, 2015

using a conjugate method , it will become 1 - 1 = 0

Fox To-ong
Feb 5, 2015

using a conjugate method , it will become 1 - 1 = 0

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