# JEE Main 2016 (21)

Geometry Level 4

$\cos(A-C)\cos(B)+\cos(2B)=0$ Then $$a^{2},b^{2} \text{ and }c^{2}$$ are in-

Clarification: $$A,B \text{ and }C$$ are angles of triangle, $$a,b \text{ and }c$$ are sides opposite to angles $$A,B \text{ and } C$$ respectively.

Try my set JEE main 2016

×