Class 12 Maths Inverse Trigonometric Identities MCQs
Class 12 Maths Inverse Trigonometric Identities MCQs
Class: CBSE Class 12 Mathematics
Subject: Mathematics
Section: Inverse Trigonometric Functions
Topic: Inverse Trigonometric Identities
Board: CBSE Board Examinations
Subject: Mathematics
Section: Inverse Trigonometric Functions
Topic: Inverse Trigonometric Identities
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. sin⁻¹x + cos⁻¹x =
Answer: A
Explanation: Standard complementary identity.
Explanation: Standard complementary identity.
Q2. tan⁻¹x + cot⁻¹x =
Answer: A
Explanation: Inverse complementary pair.
Explanation: Inverse complementary pair.
Q3. sin⁻¹x − cos⁻¹x =
Answer: B
Explanation: Derived using identity sin⁻¹x + cos⁻¹x = π/2.
Explanation: Derived using identity sin⁻¹x + cos⁻¹x = π/2.
Q4. tan⁻¹x − cot⁻¹x =
Answer: C
Explanation: Using complementary identity.
Explanation: Using complementary identity.
Q5. sin⁻¹(1/2) + cos⁻¹(1/2) =
Answer: A
Explanation: Complementary values.
Explanation: Complementary values.
Q6. tan⁻¹(1) + cot⁻¹(1) =
Answer: A
Explanation: π/4 + π/4 = π/2.
Explanation: π/4 + π/4 = π/2.
Q7. sin⁻¹x + sin⁻¹y identity applies when:
Answer: B
Explanation: Domain restriction for sum formula.
Explanation: Domain restriction for sum formula.
Q8. cos⁻¹x + cos⁻¹y identity valid when:
Answer: B
Explanation: Ensures principal values valid.
Explanation: Ensures principal values valid.
Q9. sin⁻¹x + cos⁻¹x graph sum equals:
Answer: A
Explanation: Identity holds for all x in domain.
Explanation: Identity holds for all x in domain.
Q10. tan⁻¹x + tan⁻¹y formula involves:
Answer: D
Explanation: tan⁻¹x+tan⁻¹y = tan⁻¹((x+y)/(1−xy)).
Explanation: tan⁻¹x+tan⁻¹y = tan⁻¹((x+y)/(1−xy)).
Q11. sin⁻¹x + cos⁻¹x constant equals:
Answer: A
Explanation: Fundamental identity.
Explanation: Fundamental identity.
Q12. cot⁻¹x + tan⁻¹x equals:
Answer: A
Explanation: Complementary inverses.
Explanation: Complementary inverses.
Q13. sin⁻¹(−x) =
Answer: A
Explanation: Odd function property.
Explanation: Odd function property.
Q14. cos⁻¹(−x) =
Answer: A
Explanation: Even function transformation.
Explanation: Even function transformation.
Q15. tan⁻¹(−x) =
Answer: A
Explanation: Odd inverse tangent property.
Explanation: Odd inverse tangent property.
Q16. sin⁻¹x + sin⁻¹y =
Answer: A
Explanation: Standard sum identity.
Explanation: Standard sum identity.
Q17. cos⁻¹x + cos⁻¹y =
Answer: A
Explanation: Cosine inverse sum identity.
Explanation: Cosine inverse sum identity.
Q18. tan⁻¹x + tan⁻¹y valid if:
Answer: A
Explanation: Ensures principal value correctness.
Explanation: Ensures principal value correctness.
Q19. sin⁻¹x + cos⁻¹x graph is:
Answer: C
Explanation: Always π/2.
Explanation: Always π/2.
Q20. Identity ensures inverse trig are:
Answer: D
Explanation: Identities connect all inverse trig functions.
Explanation: Identities connect all inverse trig functions.