If vector R= P+Q and R= P+Q
Answers
Answered by
1
Explanation:
When, P+Q=R or P−R=−Q
(P−R).(P−R)=(−Q).(−Q)
P2+R2−2PRcosθ1=Q2
cosθ1=1/2 (as P=Q=R)
θ1=600
When, P+Q+R=0 or P+R=−Q
(P+R).(P+R)=(−
Answered by
0
chak this plz and watch
and
mark me a brainlist and
Attachments:
Similar questions