CBSE Class 12 Mathematics 2026 Main Paper 65/5/3 · Q121 Marksvector_magnitude
CBSE Class 12 Mathematics 2026 Main Paper 65/5/3 · Question 12 (Vector Algebra)
The position vector of (24,n) has length 25. Find n.
✅ Step-by-Step Solution
Final Answer: ±7
- Solve 24²+n²=25² to obtain n²=49.
Master Chapter 10: Vector Algebra
Practise interactive questions, flashcards, visual mind maps, and timed board tests for Vector Algebra.
← Previous Question
Find k if \(\int_0^1(6x^2-4x+k)\,dx=0\).
Next Question →Find the order and degree of \(y=(d^2y/dx^2)^2-\lambda\,dy/dx\).
All Questions in CBSE Class 12 Mathematics 2026 Main Paper 65/5/3
Related Questions in Vector Algebra
Class 12 Vector Algebra · Mcq Single Correct
Find |a × b|² + (a · b)².
Class 12 Vector Algebra · Mcq Single Correct
Find the area of triangle OAB, where OA = (1,2,3) and OB = (−3,−2,1).
Class 12 Vector Algebra · Mcq Single Correct
For nonzero vectors a,b with angle θ ∈ [0,π], when is a · b ≥ 0?
Class 12 Vector Algebra · Mcq Single Correct
For a vector a, find (a · i)i + (a · j)j + (a · k)k.
Class 12 Vector Algebra · Mcq Single Correct
Which vector has magnitude 9 and the same direction as (1,−2,2)?
Class 12 Vector Algebra · Mcq Single Correct
Find the position vector dividing the segment from 2a − 3b to a + b internally in the ratio…