Question: Form the scalar product B C and use the result obtained to prove the identity cos ( - ) = cos cos
Form the scalar product B · C and use the result obtained to prove the identity cos (α - β) = cos α cos β + sin α sin β.
a B B C X
Step by Step Solution
3.48 Rating (161 Votes )
There are 3 Steps involved in it
From 1 and 2 Equating the ... View full answer
Get step-by-step solutions from verified subject matter experts
