Recent content by sameershah23

l`s denote direction cosines and the dot represents the multiplication of the two matrices. And m,s,j take the values 1,2,3. I guess you know the Kronecker delta means,

I have to prove the following. lmj. lsj= delta ms m,j,s=1,2,3. and lmj and lsj stands for direction cosine matrix. and (delta ms) is a Kronecker delta. [b]2. Cant think of any The Attempt at a Solution