TS EAMCET · Maths · Complex Number
If the roots of the equation are and then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given, the roots of z-43=8i are a-2i, b+i and c+i. Let z=x+iy, then x+iy-43=8i ⇒x-4+iy3=8i ⇒x-43+iy3+3x-42iy+3x-4iy2=8i Using i2=-1, i3=-i, ⇒x-43-iy3+3x-42iy-3x-4y2=8i On comparing the real and imaginary parts on both sides of the equation, we get…
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