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Algebra and Matrices MCQs (Free Practice Questions)

Practice 10 carefully selected Algebra and Matrices MCQs with explanations. Continue practicing 500+ chapter-wise questions inside the Exam Sprinter app.

What is Algebra and Matrices?

Algebra and Matrices covers the essential principles and concepts required for NDA.

💡 Why Study Algebra and Matrices?

Highly important, frequently tested in NDA.

Parameter	Details / Relevance
Target Exam	NDA
Subject Category	Mathematics
Recommended Study Duration	10 Hours
Expected Questions	2 Questions
Difficulty Index	Medium
Interactive Solved MCQs	10 Questions (Complete Explanations)
Adaptive App Practice	500+ Questions & AI Tutor Supported

⚠️ Common Pitfalls to Avoid

Neglecting foundational prerequisites (make sure you review related chapters in the learning path).
Calculation and sign convention errors during numerical steps.
Confusing intermediate results with the final correct answer options.

🗺️ Recommended learning path

Algebra and Matrices (Current)➔Trigonometry

What You Will Learn

✓ Algebra and Matrices Fundamentals
✓ Key applications of Algebra and Matrices
✓ Advanced problem solving in Algebra and Matrices

Cheat Sheet & Formulas

$$\sin^2 x + \cos^2 x = 1$$
$$\vec{a} \cdot \vec{b} = ab \cos\theta$$

Practice Questions

⏱ 60sHard

If a matrix $A$ of order $3 \times 3$ has determinant $|A| = 8$ , then find the determinant of $5A$ .

⏱ 65sMedium

Find the value of $\sin(15^\circ) + \cos(105^\circ)$ for Algebra and Matrices.

⏱ 70sEasy

Find the principal argument of the complex number $z = 5 + 5i$ .

⏱ 75sHard

If vectors $\vec{a} = 8\vec{i} - \vec{j} + \vec{k}$ and $\vec{b} = \vec{i} + 4\vec{j} + \lambda\vec{k}$ are perpendicular, find the value of $\lambda$ .

⏱ 80sMedium

What is the probability of getting a sum of 12 when two fair dice are thrown?

⏱ 85sEasy

The derivative of $\ln(\sin(2x))$ with respect to $x$ is:

⏱ 90sHard

Evaluate the limit: $\lim_{x \to 0} \frac{\tan(4x)}{x}$ for Algebra and Matrices.

⏱ 95sMedium

The coordinates of the focus of the parabola $y^2 = 12x$ are:

⏱ 100sEasy

Find the number of subsets of a set containing 4 elements.

Q10

⏱ 105sHard

The vector projection of $\vec{a} = \vec{i} + \vec{j}$ on $\vec{b} = \vec{i} - \vec{j}$ is:

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Frequently Asked Questions

Is Algebra and Matrices difficult for the exam?▼

Yes, Algebra and Matrices requires strong conceptual clarity and practice of standard NDA style questions.

✓ Key Takeaways for Algebra and Matrices

High exam relevance: 2 questions on average are expected from this chapter.
Standard formulas: Comprehensive formula sheets and formulas are fully covered in the cheat sheet section above.
Practice and explanation: 10 standard MCQs are solved step-by-step to clarify common numerical and conceptual methods.
Step-by-step learning: Start with the formulas, work through the questions, and then download the mobile app for extensive practice.

Algebra and Matrices MCQs (Free Practice Questions)

🤖 Quick AI Summary

What is Algebra and Matrices?

💡 Why Study Algebra and Matrices?

⚠️ Common Pitfalls to Avoid

🗺️ Recommended learning path

What You Will Learn

Cheat Sheet & Formulas

Practice Questions

If a matrix $A$ of order $3 \times 3$ has determinant $|A| = 8$ , then find the determinant of $5A$ .

Find the value of $\sin(15^\circ) + \cos(105^\circ)$ for Algebra and Matrices.

Find the principal argument of the complex number $z = 5 + 5i$ .

If vectors $\vec{a} = 8\vec{i} - \vec{j} + \vec{k}$ and $\vec{b} = \vec{i} + 4\vec{j} + \lambda\vec{k}$ are perpendicular, find the value of $\lambda$ .

What is the probability of getting a sum of 12 when two fair dice are thrown?

The derivative of $\ln(\sin(2x))$ with respect to $x$ is:

Evaluate the limit: $\lim_{x \to 0} \frac{\tan(4x)}{x}$ for Algebra and Matrices.

The coordinates of the focus of the parabola $y^2 = 12x$ are:

Find the number of subsets of a set containing 4 elements.

The vector projection of $\vec{a} = \vec{i} + \vec{j}$ on $\vec{b} = \vec{i} - \vec{j}$ is:

Want to master Algebra and Matrices?

Frequently Asked Questions

✓ Key Takeaways for Algebra and Matrices

🔗 Related Study Resources

Algebra and Matrices MCQs (Free Practice Questions)

🤖 Quick AI Summary

What is Algebra and Matrices?

💡 Why Study Algebra and Matrices?

⚠️ Common Pitfalls to Avoid

🗺️ Recommended learning path

What You Will Learn

Cheat Sheet & Formulas

Practice Questions

If a matrix AAA of order 3×33 \times 33×3 has determinant ∣A∣=8|A| = 8∣A∣=8, then find the determinant of 5A5A5A.

Find the value of sin⁡(15∘)+cos⁡(105∘)\sin(15^\circ) + \cos(105^\circ)sin(15∘)+cos(105∘) for Algebra and Matrices.

Find the principal argument of the complex number z=5+5iz = 5 + 5iz=5+5i.

If vectors a⃗=8i⃗−j⃗+k⃗\vec{a} = 8\vec{i} - \vec{j} + \vec{k}a=8i−j​+k and b⃗=i⃗+4j⃗+λk⃗\vec{b} = \vec{i} + 4\vec{j} + \lambda\vec{k}b=i+4j​+λk are perpendicular, find the value of λ\lambdaλ.

What is the probability of getting a sum of 12 when two fair dice are thrown?

The derivative of ln⁡(sin⁡(2x))\ln(\sin(2x))ln(sin(2x)) with respect to xxx is:

Evaluate the limit: lim⁡x→0tan⁡(4x)x\lim_{x \to 0} \frac{\tan(4x)}{x}x→0lim​xtan(4x)​ for Algebra and Matrices.

The coordinates of the focus of the parabola y2=12xy^2 = 12xy2=12x are:

Find the number of subsets of a set containing 4 elements.

The vector projection of a⃗=i⃗+j⃗\vec{a} = \vec{i} + \vec{j}a=i+j​ on b⃗=i⃗−j⃗\vec{b} = \vec{i} - \vec{j}b=i−j​ is:

Want to master Algebra and Matrices?

Frequently Asked Questions

✓ Key Takeaways for Algebra and Matrices

🔗 Related Study Resources

If a matrix $A$ of order $3 \times 3$ has determinant $|A| = 8$ , then find the determinant of $5A$ .

Find the value of $\sin(15^\circ) + \cos(105^\circ)$ for Algebra and Matrices.

Find the principal argument of the complex number $z = 5 + 5i$ .

If vectors $\vec{a} = 8\vec{i} - \vec{j} + \vec{k}$ and $\vec{b} = \vec{i} + 4\vec{j} + \lambda\vec{k}$ are perpendicular, find the value of $\lambda$ .

The derivative of $\ln(\sin(2x))$ with respect to $x$ is:

Evaluate the limit: $\lim_{x \to 0} \frac{\tan(4x)}{x}$ for Algebra and Matrices.

The coordinates of the focus of the parabola $y^2 = 12x$ are:

The vector projection of $\vec{a} = \vec{i} + \vec{j}$ on $\vec{b} = \vec{i} - \vec{j}$ is: