Question:
What is the dotproduct of two vector of magnitude 3 and 5, if angle between them it
Answer:
If there are two vectors, vector A and vector B-
Then the dot-product = AB cosθ
Where,θ is the angle between two vectors.
According to question, two vectors having magnitude 3 and 5.
So, their dot-product = (3)(5) Cosθ
=15 cosθ.
Put the value of θ and get your answer.
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