Angles A, B and C of a triangle ABC are in A.P. If a, b and c are the corresponding sides, then
b2+c2−bc=a2
a2+c2−ac=b2
b2+a2−ab=c2
None of these
None of these.
The correct equation is:
c^2 = a^2 + b^2 + ab
b2+c2−bc=a2
a2+c2−ac=b2
b2+a2−ab=c2
None of these
The correct equation is:
c^2 = a^2 + b^2 + ab