Question 43

Mathematics Scalar and Vector Products Hard

The vector&nbsp;<span class="math-tex">\(\vec{a}=α \hat{i}+2\hat{j}+β \hat{k}\)</span>&nbsp;lies in the plane of the vector&nbsp;<span class="math-tex">\(\vec{b}=\hat{i} + \hat{j}\)</span>&nbsp;and&nbsp;<span class="math-tex">\(\vec{c}=\hat{j} + \hat{k}\)</span>&nbsp;and bisects the angle between&nbsp;<span class="math-tex">\(\vec{b}\)</span>&nbsp;and&nbsp;<span class="math-tex">\(\vec{c}\)</span>. Then, which one of the following gives possible values of&nbsp;&alpha; and&nbsp;&beta; ?

(A) &alpha; = 2,&nbsp;&beta; = 2
(B) &alpha; = 1,&nbsp;&beta; = 2
(C) &alpha; = 2,&nbsp;&beta; = 1
(D) &alpha; = 1,&nbsp;&beta; = 1
View Dynamic Solution & Explanation
Correct Solution: Option D

Step-by-step Solution:

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