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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 10z2–4iz–m = 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 = 1, then is equal to
Question 7
The value of is
Question 8
is equal to
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May 28JEE & BITSAT