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If vec A, vec B and vec C are mutually ...

If ` vec A, vec B and vec C` are mutually perpendicular vectors, then find the value of ` vec A. vec (B + vec C)`.

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` vec A . (vec B+ vec C) = vec A. vec B+ vec A. vec C`
=AB cos 90^(@) =0` .
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PRADEEP-KINEMATICS-3 Very short
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