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Question 1
Z= (1-i)/(1+i) can also be expressed as
Question 2
What is the argument of (2-3i)/(-5+i)
Question 3
Let α and β be real numbers and z be a complex number. If z2 + αz + β = 0 has two distinct non-real roots with Re(z) = 1, then it is necessary that
Question 4
What is the principal argument of (-1 –i), where
Question 5
Evaluate (i57 + i70 + i91 + i101 + i104).
Question 6
The common roots of the equations
z3 + 2z2 + 2z + 1 = 0 and z2017 + z2018 + 1 = 0 are
z3 + 2z2 + 2z + 1 = 0 and z2017 + z2018 + 1 = 0 are
Question 7
What is the value of (1+w-w2)(w), where w is the cube root of unity
Question 8
Given z1=2+2√3i and z2 = 1+i . find the argument of Arg (z1/z2)
Question 9
What is i1000 + i1001 + i1002 + i1003 equal to (where i = √-1)?
Question 10
The number of non-zero integral solutions of the equation |1 – 2i|x = 5x is
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CDS & DefenceMathematicsOct 27CDS & Defence