Class 12 Vector Algebra · Conceptual Answer1 Markssection_formula
Class 12 Maths · Vector Algebra · Conceptual Answer #99
In triangle OAC, B is the midpoint of AC, OA=a and OB=b. Find OC.
✅ Step-by-Step Solution
Final Answer: 2b−a
- The midpoint rule gives b=(a+OC)/2. Rearrange.
- 2b−a
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] The midpoint rule gives b=(a+OC)/2. Rearrange.
- [0.5 marks] 2b−a
Master Chapter 10: Vector Algebra
Practise interactive questions, flashcards, visual mind maps, and timed board tests for Vector Algebra.
← Previous Question
A unit vector makes angles π/3 with i, π/4 with j, and an acute…
Next Question →Given |a×b|²+(a·b)²=400 and |a|=5, find |b|.
More Practice Questions in Vector Algebra
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…