Class XII Mathematics

Chapter 9: Vector Algebra

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Print-Ready Math Worksheet

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Worksheet Details:

  • Title: Class XII Math: Vector Algebra Printable Sheet
  • Format: Print Optimized CSS stylesheet
  • Sections: Formulas checklist, 5 assessment questions, worked keys

NexPro Education Worksheet

Class XII Mathematics: Vector Algebra

Name: ______________________Date: __________________Score: ______ / 5

Section I: Key Formulas

Scalar Dot Product
\vec{a} \cdot \vec{b} = |a||b| \cos\theta
Vector Cross Product Magnitude
|\vec{a} \times \vec{b}| = |a||b| \sin\theta

Section II: Answer the Questions

1. If ,a b ⃗ ⃗ and c ⃗ are three non-zero unequal vectors such that . .a b a c= ⃗ ⃗ ⃗ ⃗ , then find the angle between a ⃗ and b ⃗ .

Solve and write the step-by-step solution in the workspace below.

2. Find the vector of magnitude 6, which is perpendicular to both the vectors 2î - 2ĵ + 1k̂ and 4î - 3ĵ + 1k̂

Solve and write the step-by-step solution in the workspace below.

3. Find | |x ⃗ if ( )( ) 12x a x a- + = ⃗ ⃗ ⃗ ⃗ , where a ⃗ is a unit vector.

Solve and write the step-by-step solution in the workspace below.

4. If a⃗ = 5î - 7ĵ + k̂and ^ ^b i j k λ= - + ⃗ ^ , then find the value of ߣ so that the vectors a b+ ⃗ ⃗ and a b- ⃗ ⃗ are orthogonal.

Solve and write the step-by-step solution in the workspace below.

5. If the vectors a ⃗ , b ⃗ and c ⃗ represent the three sides of a triangle, then show that a b b c c a× = × = × ⃗ ⃗ ⃗ ⃗ ⃗ ⃗

Solve and write the step-by-step solution in the workspace below.