Objective Questions on Principal Value Branch MCQs
Objective Questions on Principal Value Branch MCQs
Class: CBSE Class 12 Mathematics
Subject: Mathematics
Section: Inverse Trigonometric Functions
Topic: Principal Value Branch
Board: CBSE Board Examinations
Subject: Mathematics
Section: Inverse Trigonometric Functions
Topic: Principal Value Branch
Board: CBSE Board Examinations
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 12 Board Examination standard practice.
Q1. Principal value branch of sin⁻¹x is:
Answer: B
Explanation: Domain restriction ensures one‑one nature.
Explanation: Domain restriction ensures one‑one nature.
Q2. Principal value branch of cos⁻¹x is:
Answer: A
Explanation: Cosine inverse defined between 0 and π.
Explanation: Cosine inverse defined between 0 and π.
Q3. Range of tan⁻¹x principal branch:
Answer: A
Explanation: Endpoints excluded.
Explanation: Endpoints excluded.
Q4. Principal branch of cot⁻¹x:
Answer: A
Explanation: Defined between 0 and π excluding endpoints.
Explanation: Defined between 0 and π excluding endpoints.
Q5. Principal value of sin⁻¹(1) =
Answer: B
Explanation: Lies within principal interval.
Explanation: Lies within principal interval.
Q6. cos⁻¹(−1) principal value:
Answer: C
Explanation: Upper bound of cosine inverse range.
Explanation: Upper bound of cosine inverse range.
Q7. tan⁻¹(1) principal value:
Answer: B
Explanation: tan π/4 = 1.
Explanation: tan π/4 = 1.
Q8. sin⁻¹(−1) principal value:
Answer: A
Explanation: Lower bound of principal range.
Explanation: Lower bound of principal range.
Q9. cos(cos⁻¹x) =
Answer: A
Explanation: Function cancels inverse.
Explanation: Function cancels inverse.
Q10. sin⁻¹x + cos⁻¹x =
Answer: A
Explanation: Complementary identity.
Explanation: Complementary identity.
Q11. Principal value ensures function is:
Answer: B
Explanation: Domain restriction creates injectivity.
Explanation: Domain restriction creates injectivity.
Q12. Range of sin⁻¹x:
Answer: A
Explanation: Principal sine inverse interval.
Explanation: Principal sine inverse interval.
Q13. Range of cos⁻¹x:
Answer: A
Explanation: Defined principal interval.
Explanation: Defined principal interval.
Q14. Range of tan⁻¹x:
Answer: A
Explanation: Endpoints excluded.
Explanation: Endpoints excluded.
Q15. cot⁻¹(1) principal value:
Answer: A
Explanation: cot π/4 = 1.
Explanation: cot π/4 = 1.
Q16. tan(tan⁻¹x) =
Answer: A
Explanation: Inverse cancellation.
Explanation: Inverse cancellation.
Q17. cos⁻¹(1/2) principal value:
Answer: A
Explanation: cos π/3 = 1/2.
Explanation: cos π/3 = 1/2.
Q18. sin⁻¹(1/2) principal value:
Answer: A
Explanation: sin π/6 = 1/2.
Explanation: sin π/6 = 1/2.
Q19. Principal value of tan⁻¹(√3) =
Answer: A
Explanation: tan π/3 = √3.
Explanation: tan π/3 = √3.
Q20. Principal value helps to:
Answer: D
Explanation: Domain restriction ensures one‑one mapping and unique inverses.
Explanation: Domain restriction ensures one‑one mapping and unique inverses.