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Open its course - Mathematics 11

Multiple Choice Questions for Number System and Complex Numbers

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  • 1 Set of natural numbers is equivalent to set of integers.
    1. True
    2. False

  • 2 Which of the following is (are) true for conjugate complex number(s)?

    1. sum is real
    2. product is real
    3. quotient is real

    1. I only
    2. II only
    3. III only
    4. I and II only
    5. all of I, II and III

  • 3 Let z be the complex conjugate of a complex number z. Then z = z is true if
    1. z is real
    2. z is imaginary
    3. z is any complex number
    4. not possible

  • 4 Which of the numbers is (are) rational number(s)?

    1. 2
    2. 4
    3. 8

    1. I only
    2. II only
    3. III only
    4. II and III only
    5. all of I, II and III

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