Let $\bar{a}=2 \bar{i}+\bar{j}-\bar{k}$ and $\bar{b}=\bar{i}+3 \bar{k}$. If $\bar{c}$ is a unit vector, then…

Let $\bar{a}=2 \bar{i}+\bar{j}-\bar{k}$ and $\bar{b}=\bar{i}+3 \bar{k}$. If $\bar{c}$ is a unit vector, then the maximum value of $\left[\begin{array}{lll}\bar{a} & \bar{b} & \bar{c}\end{array}\right]$ is
  1. $\sqrt{39}$
  2. $\sqrt{49}$
  3. $\sqrt{69}$
  4. $\sqrt{59}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 1)

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