Find the unit vector parallel to the vector 3icap + 7jcap + 4kcap.
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given vector = 3icap+7jcap+4kcap=Abar
Magnitude of Abar=√3²+7²+4²=√9+49+16=√74
∴ unit vector parallel to Abar=3icap+7jcap+4kcap÷√74
Magnitude of Abar=√3²+7²+4²=√9+49+16=√74
∴ unit vector parallel to Abar=3icap+7jcap+4kcap÷√74
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