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Class XI Maths Complex Numbers and Quadratic Equations Quiz 7
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Question 1
If α and β are the roots of ax2 + bx + c = 0, the value of 
is
is Question 2
If α, β are the roots of the equation x2+ px + p2 + q = 0, then the value of α2 + αβ + β2 + q is equal to:
Question 3
Consider the equation x2 + 2x – n = 0, where n ∈ N and n ∈ [5, 100]. Total number of different values of ‘n’ so that the given equation has integral roots, is
Question 4
If the equation k (6x2 + 3) + rx + 2x2 – 1 = 0 and 6k (2x2 + 1) + px + 4x2 – 2 = 0 have both roots common, then the value of (2r – p) is
Question 5
If 
, then find (x, y).
, then find (x, y).Question 6
Ifx+iy = (-1+i
)2010, then x =
)2010, then x = Question 7
If z is a complex number such that |z| = 4 and arg(z) 
Then z is equal to
Then z is equal to Question 8
The argument of the complex number 
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May 28JEE & BITSAT
