"If a unit vector ` vec a` makes angles `pi/3` with ` hat i ,pi/4` with ` hat j` and an acute angle
Channel: Doubtnut
Date: 12/07/2020

"If a unit vector ` vec a` makes angles `pi/3` with ` hat i ,pi/4` with ` hat j` and an acute angle `theta` with ` hat k` , then find the value of `theta` ."