(a) Prove that P = cos 1 ax + sin 1 ay and Q = cos 2...
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xy-plane respectively making angles θ1 and θ2 with the x-axis.
(b) By means of dot product, obtain the formula for cos(θ2 — θ1)- By similarly formulating P and Q, obtain the formula for cos(θ2 + θ1).
(c) If θ is the angle between P and Q, find ½ |P – Q| in terms of θ.
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a b c Let P and Q be ...View the full answer
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