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The product of the sines of the angles o...

The product of the sines of the angles of a triangle is `p` and the product of their cosines is `qdot` Show that the tangents of the angles are the roots of the equation `q x^3-p x^2+(1+q)x-p=0.`

A

`qx^(2)-px ^(2)+(1+q)x-p=0`

B

`px^(3)-qz^(2)+ (1-p) x-q=0`

C

`(1+q)x^(3)-px^(2) +qx-p=0`

D

None of these

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