Question:

Let \(\bar{a}=\hat{i}+2\hat{j}-3\hat{k}\) and \(\bar{a}+\bar{b}=4\hat{i}-2\hat{j}+\lambda\hat{k}\). If \(\bar{a}\cdot\bar{b}=4\), then the value of \(\lambda\) is equal to

Updated On: May 31, 2024
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The Correct Option is C

Solution and Explanation

The correct option is (C) : -6
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