Waste less time on Facebook — follow Brilliant.
×

A trigonometry problem

Please help me out with this problem

Given \[\dfrac{\cos A}{\cos B}+\dfrac{\sin A}{\sin B}=-1.\] Then what is the value of \[\dfrac{\cos^{3}B}{\cos A}+\dfrac{\sin^{3}B}{\sin A}?\]

a ) \(1\)

b ) \(0\)

c ) \(4\)

d ) \(\dfrac{1}{2}\)

Note by Skanda Prasad
4 months, 1 week ago

No vote yet
1 vote

Comments

There are no comments in this discussion.

×

Problem Loading...

Note Loading...

Set Loading...