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JEE Main 2007Medium

Q.The vector r⃗=i^−2j^+2k^\vec{r} = \hat{i} - 2\hat{j} + 2\hat{k} is perpendicular to the vector

a
i^+2j^−2k^\hat{i} + 2\hat{j} - 2\hat{k}
b
2i^−j^+k^2\hat{i} - \hat{j} + \hat{k}
c
i^+j^+k^\hat{i} + \hat{j} + \hat{k}
d
3i^+j^+k^3\hat{i} + \hat{j} + \hat{k}

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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