given the two lines calculate the angle that is formed by the intersection of the pair of lines
i have tried everything even converting these to symmetric equation and figuring out the Cartesian coordiantes for both lines which are for L1(-1,1,0) and for L2(-1,0,7)
then of course taking the dot product and dividing by the magnitude of both and the negative cosine to get the angle
I corrected the reply.
BTW: I made the mistake because your equations are hard to read.
Why don’t you bother to learn basic LaTeX??