x,y,z are respectively the sines and p,q,r are respectively the cosines of angles A,B,C which are in AP with common difference 2pi/3 i.e 120 degreesthen prove that the value of8x2(qy – rz) + 8y2(rz – px) + 8z2(px – qy) is (27)1/2
x,y,z are respectively the sines and p,q,r are respectively the cosines of angles A,B,C which are in AP with common difference 2pi/3 i.e 120 degrees
then prove that the value of
8x2(qy – rz) + 8y2(rz – px) + 8z2(px – qy) is (27)1/2