CBSE Class 12 Mathematics 2026 Main Paper 65/3/2 · Q71 Marksdot_and_cross_products
CBSE Class 12 Mathematics 2026 Main Paper 65/3/2 · Question 7 (Vector Algebra)
Which inequality or equality holds for every pair of vectors a and b?
✅ Step-by-Step Solution
Final Answer: a·b≤|a||b|
- For nonzero vectors a·b=|a||b| cos θ≤|a||b|, and the inequality also holds if one vector is zero.
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