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Class XI Maths Complex Numbers and Quadratic Equations Quiz 8

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Question 1

For all x R, if mx2 – 9mx + 5m + 1 > 0, then m lies in the interval

Question 2

If both roots of the quadratic equation x2 + x + p = 0 exceed p, where p R, then p must lie in the interval

Question 3

The values of x and y besides y can satisfy the equation (x, y real numbers) x2 xy + y2 4x 4y + 16 = 0

Question 4

The condition for a2x4 + bx3 + cx2 + dx + f2 may be perfect square is

Question 5

For the equation 10z2–4izm = 0, where z is a complex variable and i =, which of the following is true?

Question 6

If α and β are two different complex numbers with Description: Description: image612.png = 1, then Description: Description: image613.png is equal to

Question 7

The value of is

Question 8

is equal to
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May 28JEE & BITSAT