"The vertices of a triangle are `A(1,1),\ B(4,5)a n d\ C(6, 13)dot` Find `Cos\ Adot`"
Channel: Doubtnut
Date: 2020-07-05

"The vertices of a triangle are `A(1,1),\ B(4,5)a n d\ C(6, 13)dot`
 Find `Cos\ Adot`"