JEE & NEETJEE Mathematics JEE Main Maths 100+ MCQ & Answer | Page-03 | JEE & NEET MCQ February 4, 2025 DSN MARATHI 21. What is the value of sin-1(-x) for all x belongs to [-1, 1]? A. sin-1(-x)/2 B. -sin-1(x) C. sin-1(x) D. 2sin-1(x) Answer Option : B 22. What is the value of cos-1(-x) for all x belongs to [-1, 1]? A. cos-1(-x) B. π – cos-1(x) C. π – cos-1(-x) D. π + cos-1(x) Answer Option : B 23. What is the value of sin-1(sin 6)? A. -2π + 6 B. -2π – 6 C. 2π – 6 D. 2π + 6 Answer Option : A 24. What will be the value of x + y + z if cos-1 x + cos-1 y + cos-1 z = 3π? A. -2/3 B. 3 C. 1/3 D. -3 Answer Option : D 25. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. cos-1(π/7) D. sin-1(π/7) Answer Option : D 26. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. cos-1(π/7) D. sin-1(π/7) Answer Option : D 27. In a matrix with 9 elements, then the possible ordered pairs are (3, 3), (1, 9), (9, 1). A. True B. False Answer Option : A 28. The matrix which follows the conditions m=n is called? A. Square matrix B. Rectangular matrix C. Scalar matrix D. Diagonal matrix Answer Option : A 29. The matrix which follows the condition m>n is called as _______. A. square matrix B. vertical matrix C. diagonal matrix D. horizontal matrix Answer Option : B 30. Which of the following is not a possible ordered pair for a matrix with 6 elements. A. (1,6) B. (3,1) C. (3,2) D. (2,3) Answer Option : B
21. What is the value of sin-1(-x) for all x belongs to [-1, 1]? A. sin-1(-x)/2 B. -sin-1(x) C. sin-1(x) D. 2sin-1(x) Answer Option : B
22. What is the value of cos-1(-x) for all x belongs to [-1, 1]? A. cos-1(-x) B. π – cos-1(x) C. π – cos-1(-x) D. π + cos-1(x) Answer Option : B
24. What will be the value of x + y + z if cos-1 x + cos-1 y + cos-1 z = 3π? A. -2/3 B. 3 C. 1/3 D. -3 Answer Option : D
25. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. cos-1(π/7) D. sin-1(π/7) Answer Option : D
26. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. cos-1(π/7) D. sin-1(π/7) Answer Option : D
27. In a matrix with 9 elements, then the possible ordered pairs are (3, 3), (1, 9), (9, 1). A. True B. False Answer Option : A
28. The matrix which follows the conditions m=n is called? A. Square matrix B. Rectangular matrix C. Scalar matrix D. Diagonal matrix Answer Option : A
29. The matrix which follows the condition m>n is called as _______. A. square matrix B. vertical matrix C. diagonal matrix D. horizontal matrix Answer Option : B
30. Which of the following is not a possible ordered pair for a matrix with 6 elements. A. (1,6) B. (3,1) C. (3,2) D. (2,3) Answer Option : B
