11th Math Complex Numbers and Quadratic Equations MCQ Chapter Quiz: Check knowledge with instant result

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11th Math: Complex Numbers and Quadratic Equations

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1. $math quiz$

2 – 1 i

2 – 2 i

3 – 3 i

4 – 2 i

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2 / 10

2. In case 4x + i(3x – y) = 3 + i (– 6), where x and y are real numbers, then what is the values of x and y?

x = 3/4 and y =3/4

x = 3/4 and y =33/4

x = 33/4 and y =3/4

x = 23/4 and y =33/4

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3. $math quiz$

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4. If 1 – i, is a root of the equation x² + ax + b = 0, where a, b ∈ R, then the value of a – b is

-2

-3

-4

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5. The value of 1 + i² + i⁴ + i⁶ + … + i²ⁿ is

positive

negative

cannot be evaluated

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6. $math quiz$

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7. If a complex number z lies in the interior or on the boundary of a circle of radius 3 units and centre (– 4, 0), the greatest value of |z +1| is

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8. The value of arg (x) when x < 0 is

π/2

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9. Find the real numbers x and y if (x – iy) (3 + 5i) is the conjugate of –6 – 24i.

x = -3, y = 3

x = 4, y = – 4

x = 2, y = – 2

x = 3, y = – 3

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10. The simplified value of (1 – i)³/(1 – i³) is

-1

-2

-3

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11th Math Complex Numbers and Quadratic Equations MCQ Chapter Quiz: Check knowledge with instant result

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