If P vector=Q vector=P vector + Q vector and theta is the angle between two vectors then find the theta
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Answer:
tan
2
θ
=
P+Qcosθ
Qsinθ
cos(θ/2)
sin(θ/2)
=
P+Qcosθ
Qsinθ
2cos(θ/2)cos(θ/2)
2sin(θ/2)cos(θ/2)
=
2cos
2
(θ/2)
sin(θ)
=
1+cosθ
sinθ
=
Q
P
+cosθ
sinθ
On comparing:
Q
P
=1orP=Q
Explanation:
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