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If cos A = tan B, cos B = tan C and cos ...

If `cos A = tan B`, `cos B = tan C` and cos `C = tan A` then show that `sin A = sin B = sin C = 2sin 18^circ`.

A

`(sqrt(5)-1)/(4)`

B

`(sqrt(5)-1)/(2)`

C

`(sqrt(3)-1)/(4)`

D

`(sqrt(3)-1)/(2)`

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A, B
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