Monday 4 June 2012

CHAPTER NO 1 PART 2


            1. The set of first element of all ordered pairs of a binary relation is called its

      (a) Range            (b) Domain
      (c) Co-domain    (d) None of these

      2. If every member of a set A is also member of set B, then
     (a) A is subset of B          (b) A is super set of B
     (c) B is subset ofA           (d) None of these

      3. A quantity which does not remain fixed is called a

     (a) Variable     (b) Constant
     (c) Parameter  (d) Both b and c

     4. If f is a function f: Xà Y, then Y is called
  
    (a) Domain       (b) Co-domain
    (c) Range         (d) None of these

     5. If y is a function of x, then y is called
  
    (a) independent variable    (b) Dependent Variable
    (c) Parameter                     (d) Constant

    6. If A and B are non-empty sets, then A × B is

     (a) {(x, y) / xÎ A Ù y Î B}       (b) {(x, y) / xÎ A Ú y Î B}
     (c) {(x, y) / x Î B Ù y Î A}      (d){(x, y) / x Î B Ú y Î A}

  7. Any subset of A × B is called a

     (a) binary relation   (b) binary operation
     (c) function             (d) Cartesian Product

  8. x is function of y is written as

    (a) y = f(x)           (b) x = f(y)
    (c) f(x, y) = 0       (d) x = y

  9. If a function f: Xà Y is such that "x1, x2 Î X , x1 ¹ x2 Û f (x1) ¹ f (x2 ) , then f is called

    (a) Onto      (b) (1-1)
    (c) Into       (d) Both a and b

10. For a function f: Xà Y, if Range = Y then f is called
(a) Onto    (b) (1-1)
(c) Into     (d) Both b and c

11. Onto function is also known as

(a) Surjective       (b) Injective
(c) Bijective        (d) None of these

12. If a degree of polynomial function is 2, then function is

(a) Linear       (b) Quadratic
(c) Cubic        (d) None of these

13. The function y = loge x is called __________ Logarithmic

(a) Common     (b) Natural
(c) General       (d) None of these

14. The equation of the form x = f(t), y = g(t) where t is parameter are called

(a) Implicit equation           (b) explicit equation
(c) Parametric equation      (d) none of these

15. If f(x) = Sinx + Cosx then f is __________ function

(a) Odd          (b) Even
(c) Implicit    (d) None of these

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