Question

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1.find the angle btw A=i^+2j^-k nd
B=-i^+j^-2k^ .
2.find the work done by the force
f=i^+3j^+4k^ N in moving the body by a distance 3 metre along Z axis .
Maya
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Answer 1

Answer:

60° and 12J

Explanation:

Refer to the material.