Mathematics · Vector Algebra
If 'θ' is the angle between two vectors a and b such that |a| = 7, |b| = 1 and |a × b|2 = k2 - (a · b)2, then the values of k and θ are:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1k = 7 and θ is arbitrary✓
- 2k = 7, θ = 60°
- 3k = 49, θ = 90°
- 4k = 1, θ = 45°
Correct answer
k = 7 and θ is arbitrary
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