Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to , find the scalar projection of a onto b and a · b.
Answer
ab =:
49/4
a · b =:
539

Question

Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to , find the scalar projection of a onto b and a · b.

Revolt · Accepted Answer

ab =: 49/4; a · b =: 539

Dot Product and Work

Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to , find the scalar projection of a onto b and a · b.

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