Question

what is the vector component of b in the direction of vector a​

Answer 1

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let there be 2 vectors a and b and the angle between the vectors be A.

the components of vector b would be

perpendicular to vector a

along vector a

we want the magnitude of the vector along vector a and the angle between them is A.

applying component of vectors,

bcos(A)=vector along a

where b is the magnitude and A is the angle between the vectors.

so,

Because A is the expression.

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