Sets, Relations & Functions

Q. If x = cos^(-1)(1/2), what is sin(x)?
  • A. √3/2
  • B. 1/2
  • C. 0
  • D. 1
Q. If x = sin^(-1)(-1), then the value of x is:
  • A. -π/2
  • B. π/2
  • C. 0
  • D. π
Q. If x = sin^(-1)(-1), what is the value of x?
  • A. -π/2
  • B. 0
  • C. π/2
  • D. π
Q. If x = sin^(-1)(1/2), then the value of cos(x) is:
  • A. 1/2
  • B. √3/2
  • C. 1
  • D. 0
Q. If x = sin^(-1)(1/3), then what is the value of cos(x)?
  • A. √(8)/3
  • B. √(2)/3
  • C. 1/3
  • D. 2/3
Q. If x = tan^(-1)(1), then the value of x is:
  • A. π/4
  • B. π/2
  • C. 0
  • D. 1
Q. If x = tan^(-1)(1/√3), what is the value of x?
  • A. π/6
  • B. π/4
  • C. π/3
  • D. 0
Q. If y = cos^(-1)(x), then dy/dx is:
  • A. -1/√(1-x^2)
  • B. 1/√(1-x^2)
  • C. 0
  • D. 1
Q. If y = sin^(-1)(x), then what is the derivative dy/dx?
  • A. 1/√(1-x^2)
  • B. 1/(1-x^2)
  • C. √(1-x^2)
  • D. 1/x
Q. If y = sin^(-1)(x), then x = sin(y) implies:
  • A. y = x
  • B. y = -x
  • C. y = 1-x
  • D. y = 1+x
Q. If y = sin^(-1)(x), what is the second derivative d^2y/dx^2?
  • A. 0
  • B. 1/√(1-x^2)^3
  • C. -1/√(1-x^2)^3
  • D. undefined
Q. If y = tan^(-1)(x), then the range of y is:
  • A. (-π/2, π/2)
  • B. (0, π)
  • C. (-π, π)
  • D. [0, 1]
Q. If y = tan^(-1)(x), then what is the second derivative d^2y/dx^2?
  • A. 0
  • B. -2/(1+x^2)^2
  • C. 2/(1+x^2)^2
  • D. 1/(1+x^2)
Q. If \( y = \cot^{-1}(x) \), what is \( \frac{dy}{dx} \)?
  • A. \( -\frac{1}{1+x^2} \)
  • B. \( \frac{1}{1+x^2} \)
  • C. 0
  • D. undefined
Q. If \( y = \sec^{-1}(x) \), what is \( \frac{dy}{dx} \)?
  • A. \( \frac{1}{
  • B. x
  • C. \sqrt{x^2-1}} \)
  • D. \( \frac{1}{x\sqrt{x^2-1}} \)
  • . 0
  • . undefined
Q. If \( y = \sin^{-1}(x) + \cos^{-1}(x) \), what is the value of \( y \)?
  • A. 0
  • B. 1
  • C. \( \frac{\pi}{2} \)
  • D. undefined
Q. If \( y = \tan^{-1}(x) + \tan^{-1}(y) \), what is the value of \( y \) when \( x = 1 \)?
  • A. 0
  • B. 1
  • C. \( \frac{\pi}{4} \)
  • D. undefined
Q. Let A = {1, 2, 3, 4} and R be the relation defined by R = {(a, b) | a < b}. How many ordered pairs are in R?
  • A. 4
  • B. 6
  • C. 8
  • D. 10
Q. Let A = {1, 2, 3, 4} and R be the relation defined by R = {(x, y) | x < y}. How many ordered pairs are in R?
  • A. 4
  • B. 6
  • C. 8
  • D. 10
Q. Let R be a relation on the set of natural numbers defined by R = {(m, n) | m divides n}. Is R a partial order?
  • A. Yes
  • B. No
  • C. Only reflexive
  • D. Only transitive
Q. The function f(x) = x^2 - 4 is:
  • A. Always increasing
  • B. Always decreasing
  • C. Neither increasing nor decreasing
  • D. Both increasing and decreasing
Q. The function f(x) = x^2 - 4x + 4 can be expressed in which form?
  • A. (x - 2)^2
  • B. (x + 2)^2
  • C. (x - 4)^2
  • D. (x + 4)^2
Q. The function f(x) = |x - 3| is continuous at which of the following points?
  • A. x = 1
  • B. x = 2
  • C. x = 3
  • D. x = 4
Q. The range of sin^(-1)(x) is:
  • A. [-π/2, π/2]
  • B. [0, π]
  • C. [-1, 1]
  • D. [0, 1]
Q. The range of the function f(x) = |x - 1| is:
  • A. (-∞, 1)
  • B. [0, ∞)
  • C. (-1, 1)
  • D. [1, ∞)
Q. The range of the function y = sin^(-1)(x) is:
  • A. (0, π)
  • B. [-π/2, π/2]
  • C. [-1, 1]
  • D. [0, 1]
Q. The value of cos(tan^(-1)(x)) is:
  • A. 1/√(1+x^2)
  • B. x/√(1+x^2)
  • C. √(1+x^2)/x
  • D. 0
Q. The value of sin(tan^(-1)(x)) is:
  • A. x/√(1+x^2)
  • B. √(1-x^2)
  • C. 1/√(1+x^2)
  • D. x
Q. The value of sin^(-1)(sin(π/4)) is:
  • A. π/4
  • B. 3π/4
  • C. 0
  • D. π/2
Q. What is the composition of functions f(g(x)) if f(x) = x + 1 and g(x) = 2x?
  • A. 2x + 1
  • B. 2x - 1
  • C. x + 2
  • D. x + 1
Showing 121 to 150 of 219 (8 Pages)
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