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A vector is represented by $3 \hat{i} + \hat{j} + 2 \hat{k}$ . Its length in XY

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detailed solution

Correct option is C

R = 3i^+j^+2k^∴Length in XY plane = Rx2+Ry2 = 32+12 = 10

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A vector is represented by 3i^+j^+2k^. Its length in XY

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A vector is represented by $3 \hat{i} + \hat{j} + 2 \hat{k}$ . Its length in XY