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Vector Algebra question

2024 · 5 Apr · Shift 2 · Q49
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  5. /2024 · 5 Apr · Shift 2 · Q49

Vector Algebra question

2024 · 5 Apr · Shift 2 · Q49

JEE MainMathematicsVector AlgebraMCQ+4 / −1
Consider three vectors a⃗,b⃗,c⃗\vec{a}, \vec{b}, \vec{c}a,b,c. Let ∣a⃗∣=2,∣b⃗∣=3|\vec{a}|=2,|\vec{b}|=3∣a∣=2,∣b∣=3 and a⃗=b⃗×c⃗\vec{a}=\vec{b} \times \vec{c}a=b×c. If α∈[0,π3]\alpha \in\left[0, \frac{\pi}{3}\right]α∈[0,3π​] is the angle between the vectors b⃗\vec{b}b and c⃗\vec{c}c, then the minimum value of 27∣c⃗−a⃗∣227|\vec{c}-\vec{a}|^227∣c−a∣2 is equal to:
  1. A
    124
  2. B
    110
  3. C
    121
  4. D
    105
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