Question

Q 2 If z and z* be two complex numbers then 1 point (a) |z-z*|=|z|-|z*| (b) |z-z*|≤|z|-|z*| (c) |z-z*|≥|z|-|z*| (d) |z-z*|>|z|-|z*|
Q 3 If z is a complex number such that (z-1)/(z+1) is purely imaginary then 1 point (a) |z|1 (c) |z|=1 (d) None of above Other:
Q 4 Which one of the following is a complex number 1 point (a) e (b) √5 (c) √-5 (d) None of the above Other
Q 5 If |z|=4 and Arg z=5π/6 then z is 1 point (a) 2√3+2i (b) 2√3-2i (c) -2√3+2i (d) -√3+i Other: Q 6 If z and z* are non-real complex numbers such that z+z* and zz* are real numbers then 1 point (a) z= conjugate of z* (b) z=conjugate of z and z*=conjugate of z* (c) z= negative of conjugate of z* (d) z and z* are two arbitrary complex numbers
Q 7 The distance of the representative of the number 1+i from the origin is 1 point (a) 1 (b) -1 c)2 d)root 2
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Answer 1

Answer:

write the meanings of the given words