If $\bar{a}, \bar{b}$ are two non-parallel unit vectors and the vector $\alpha \bar{a}+\bar{b}$ bisects the…

If $\bar{a}, \bar{b}$ are two non-parallel unit vectors and the vector $\alpha \bar{a}+\bar{b}$ bisects the internal angle between $\bar{a}$ and $\bar{b}$, then $\alpha$ is equal to
  1. $1$
  2. $\frac{1}{2}$
  3. $2$
  4. $3$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (25 Apr Shift 2)

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