JEE & NEETJEE Mathematics JEE Main Maths 100+ MCQ & Answer | Page-02 | JEE & NEET MCQ February 4, 2025 DSN MARATHI 11. A function f:R→R defined by f(x)=5x4+2 is one – one but not onto. A. True B. False Answer Option : B 12. Let A={1,2,3} and B={4,5,6}. Which one of the following functions is bijective? A. f={(1,4),(2,5),(3,6)} B. f={(1,4),(1,5),(1,6)} C. f={(1,5),(2,4),(3,4)} D. f={(2,4),(2,5),(2,6)} Answer Option : A 13. Let M={5,6,7,8} and N={3,4,9,10}. Which one of the following functions is neither one-one nor onto? A. f={(6,4),(7,3),(7,9),(8,10)} B. f={(5,3),(5,4),(6,4),(8,9)} C. f={(5,3),(6,4),(7,9),(8,10)} D. f={(5,4),(5,9),(6,3),(7,10),(8,10)} Answer Option : B 14. What is the value of sin-1(sin 6)? A. -2π + 6 B. -2π – 6 C. -2π – 6 D. 2π + 6 Answer Option : A 15. 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 16. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. sin-1(π/7) D. cos-1(π/7) Answer Option : C 17. 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 18. 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 19. What is the value of sin-1(sin 6)? A. -2π + 6 B. -2π – 6 C. 2π – 6 D. 2π + 6 Answer Option : A 20. 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
11. A function f:R→R defined by f(x)=5x4+2 is one – one but not onto. A. True B. False Answer Option : B
12. Let A={1,2,3} and B={4,5,6}. Which one of the following functions is bijective? A. f={(1,4),(2,5),(3,6)} B. f={(1,4),(1,5),(1,6)} C. f={(1,5),(2,4),(3,4)} D. f={(2,4),(2,5),(2,6)} Answer Option : A
13. Let M={5,6,7,8} and N={3,4,9,10}. Which one of the following functions is neither one-one nor onto? A. f={(6,4),(7,3),(7,9),(8,10)} B. f={(5,3),(5,4),(6,4),(8,9)} C. f={(5,3),(6,4),(7,9),(8,10)} D. f={(5,4),(5,9),(6,3),(7,10),(8,10)} Answer Option : B
15. 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
16. Which value is similar to sin-1sin(6 π/7)? A. coses-1(π/7) B. sin-1(2π/7) C. sin-1(π/7) D. cos-1(π/7) Answer Option : C
17. 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
18. 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
20. 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
