Question

The angle between P^ and Q^ is θ. What is P^.Q^? *
(a)PQ cos θ
(b)sin θ
(c)PQ sin θ
(d)PQ cos θ​

Answer 1

Answer:

a

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Answer 2

Answer:

a) PQ cos θ

Explanation:

For calculating dot product between two vector angel we use cosine(cos).