Find a unit vector parallel to the vector `-3hati+4hatj`.

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Find a unit vector parallel to the vector `-3hati+4hatj`.
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sir ye in ka underroot kesy 25 aya ha plz explain

MahnoorKhan-
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I have a doubt, why u have not added the -3i^+4j^ ? Cause in many Q we add them. Please answer

Daelee_h