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Class XI Maths Complex Numbers and Quadratic Equations Quiz 7
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Question 1
The value of 
is
isQuestion 2
Let the complex numbers z1, z2, z3 represents vertices of an equilateral triangle. If z0 be the circumcentre of the triangle then z12 + z22 + z32 =
Question 3
If |z|=4 and arg z=(5
/6), then z is,
/6), then z is, Question 4
If |z1-1|<1; |z2-2|<2; |z3-3|<3 then |z1+z2+z3|is,
Question 5
If 
= 0, where p, q, and r, are the moduli of u, v, and w respectively, then what is the value of arg
?
= 0, where p, q, and r, are the moduli of u, v, and w respectively, then what is the value of arg?Question 6
If 
denotes the nth term of an A.P and 
and 
, then which of the following is necessarily a root of the equation (p+2q 3r)
+(q+2r-3p)x+(r+2p-3q)=0.
denotes the nth term of an A.P and and , then which of the following is necessarily a root of the equation (p+2q 3r)+(q+2r-3p)x+(r+2p-3q)=0.Question 7
The sum of the roots of the equation, 
is:
is: Question 8
If a,b,c,….z represent 26 roots of unity then the sum of roots taken 4 at a time is
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Aug 4JEE & BITSAT
