If $\bar{a}=\hat{i}+\hat{j}+\hat{k}, \bar{b}=4 \hat{i}+3 \hat{j}+4 \hat{k}$ and $\bar{c}=\hat{i}+\alpha…

If $\bar{a}=\hat{i}+\hat{j}+\hat{k}, \bar{b}=4 \hat{i}+3 \hat{j}+4 \hat{k}$ and $\bar{c}=\hat{i}+\alpha \hat{j}+\beta \hat{k}$ are linearly dependent vectors and $|\overline{\mathrm{c}}|=\sqrt{3}$, then the values of $\alpha$ and $\beta$ are respectively.
  1. 1,1
  2. 2,1
  3. 0,1
  4. 1,2

Solution

Note that only for option (A), i.e., for $\alpha=1$ and $\beta=1,|\vec{c}|=\sqrt{3}$ holds true. $\therefore \quad$ Option (A) is correct.

Asked in: MHT CET 2023 (11 May Shift 2)

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