AP EAMCET202317 May 2023Evening ShiftMathematicsComplex NumberActual
If z₁=2+5 i, z₂=-1+4 i and z₃=1 , then | z₁-z₃ z₃-z₂ |=
Options
- A2
- B2 2
- C5 2
- D4 2
Correct answer
A. 2
Step-by-step solution
Given: z₁=2+5 i, z₂=-1+4 i, z₃=i Now, z₁-z₃ z₃-z₂ = 2+5 i-i i-(-1+4 i) = 2+4 i 1-3 i = 2(5 i-5) 10 = 10(i-1) 10 z₁-z₃ z₃-z₂ =i-1 Then, | z₁-z₃ z₃-z₂ |= 1+1 =2