NCERT Class 12 · Ch 10 Miscellaneous Exercise · Q5
NCERT Class 12 Maths · Chapter 10 Vector Algebra · Miscellaneous Exercise Question 5
Find x so x(i+j+k) is a unit vector.
💡 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: x=±1/√3.
- Its magnitude is |x|√3.
- Set |x|√3=1, giving both signs x=±1/√3.
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