NCERT Exemplar Solutions
Class 11 - Mathematics - Chapter 5: COMPLEX NUMBERS AND QUADRATIC EQUATIONS
Match the Following

Question. 27

Match the items in Column A with Column B using the table below.

Column AColumn B

(a) The polar form of \(i + \sqrt{3}\)

(i) Perpendicular bisector of segment joining \((-2,0)\) and \((2,0)\)

(b) The amplitude of \(-1 + \sqrt{3}\) is

(ii) On or outside the circle having centre at \((0,-4)\) and radius 3

(c) If \(|z + 2| = |z - 2|\), then locus of \(z\) is

(iii) \(\dfrac{2\pi}{3}\)

(d) If \(|z + 2i| = |z - 2i|\), then locus of \(z\) is

(iv) Perpendicular bisector of segment joining \((0,-2)\) and \((0,2)\)

(e) Region represented by \(|z + 4i| \ge 3\) is

(v) \(2\bigl(\cos\tfrac{\pi}{6} + i\sin\tfrac{\pi}{6}\bigr)\)

(f) Region represented by \(|z + 4| \le 3\) is

(vi) On or inside the circle having centre \((-4,0)\) and radius 3 units

(g) Conjugate of \(\dfrac{1 + 2i}{1 - i}\) lies in

(vii) First quadrant

(h) Reciprocal of \(1 - i\) lies in

(viii) Third quadrant

Answer:

Column AMatched Item from Column B

(a) The polar form of \(i + \sqrt{3}\)

(v) \(2\bigl(\cos\tfrac{\pi}{6} + i\sin\tfrac{\pi}{6}\bigr)\)

(b) The amplitude of \(-1 + \sqrt{3}\) is

(iii) \(\dfrac{2\pi}{3}\)

(c) If \(|z + 2| = |z - 2|\), then locus of \(z\) is

(i) Perpendicular bisector of segment joining \((-2,0)\) and \((2,0)\)

(d) If \(|z + 2i| = |z - 2i|\), then locus of \(z\) is

(iv) Perpendicular bisector of segment joining \((0,-2)\) and \((0,2)\)

(e) Region represented by \(|z + 4i| \ge 3\) is

(ii) On or outside the circle having centre at \((0,-4)\) and radius 3

(f) Region represented by \(|z + 4| \le 3\) is

(vi) On or inside the circle having centre \((-4,0)\) and radius 3 units

(g) Conjugate of \(\dfrac{1 + 2i}{1 - i}\) lies in

(viii) Third quadrant

(h) Reciprocal of \(1 - i\) lies in

(vii) First quadrant

NCERT Exemplar Solutions Class 11 – Mathematics – Chapter 5: COMPLEX NUMBERS AND QUADRATIC EQUATIONS – Match the Following | Detailed Answers