Question

Two vectors are given by A=I+2j+2k,B=3i+6j+2k.another vector c has the same magnitude as B but bas the direction same as A then which of the following vector represent C

Answer 1

Magnitude of C =magnitude of B
Direction of C = direction of A

Direction of A=(it's representation along axis)/it's magnitude

Direction of A=i+2j+2k/√1²+2²+2²

C=magnitude of B*direction of A
C=(√3²+6²+2²)*(i+2j+2k)/(√1²+2²+2²)
C=7(i+2j+2k)/3
C=7/3(i+2j+2k)

Answer 2

Answer:

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Explanation:

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