Cosine of the angle between the lines `overliner=5hati-hatj+4hatk+lamda(hati+2hatj+2hatk)`
Channel: Doubtnut
Date: 24/05/2020

Cosine of the angle between the lines `overliner=5hati-hatj+4hatk+lamda(hati+2hatj+2hatk)`and `overliner=7hati+2hatj+2hatk+mu(3hati+2hatj+6hatk)`is