NCERT Class 12 · Ch 10 Exercise 10.3 · Q12
NCERT Class 12 Maths · Chapter 10 Vector Algebra · Exercise 10.3 Question 12
If a·a=0 and a·b=0, what follows about b?
💡 Concept Hints
- Write the vector components and identify the required direction or geometric relation.
- Use the magnitude, dot-product, cross-product or section formula that matches the requested quantity.
✅ Step-by-Step Solution
Final Answer: No restriction on b.
- a·a=|a|²=0 implies a=0 in Euclidean vector space.
- Then a·b=0·b=0 for every b, so the second equation conveys no further information.
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