Question

Q1. If P+Q+R=0, |P|=2|Q| and |ŘI=2|Q|, then
the angle between - R and P is
(1) tan-1 (√7/11)
(2) Sin-1(3/4√2)
(3) tan-1(1/2)
(4) tan-1 (5/4√2)​

Answer 1

Answer:

tan -1(5/4/2

Explanation:

hope it's help u