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If →a is unit vector , then ∣∣(→a.^i)^i+(→a.^j)^j+(→a.^k)^k∣∣= |
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Answer» If →a is unit vector , then ∣∣(→a.^i)^i+(→a.^j)^j+(→a.^k)^k∣∣= |
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