If $\bar{a}$ and $\bar{b}$ are not perpendicular to each other, $\bar{r} \times \bar{a}=\bar{b} \times…

If $\bar{a}$ and $\bar{b}$ are not perpendicular to each other, $\bar{r} \times \bar{a}=\bar{b} \times \bar{a}$ and $\bar{r} \cdot \bar{c}=0$ then $\bar{r}=$
  1. $\bar{a}-\bar{c}$
  2. $\bar{b}-\left(\frac{\bar{b} \cdot \bar{c}}{\bar{a} \cdot \bar{c}}\right) \bar{a}$
  3. $\bar{b}+\left(\frac{\bar{b} \cdot \bar{c}}{\bar{a} \cdot \bar{c}}\right) \bar{a}$
  4. $\bar{a}+\bar{c}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (25 Apr Shift 1)

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