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2001

JEE Main 2001 Mathematics question on Complex Numbers and Quadratic Equations

Let z1z_1 and z2z_2 be nnth roots of unity which subtend a right angled at the origin, then nn must be of the form (where, kk is an integer)
  1. A.
    4k+14k + 1
  2. B.
    4k+24k + 2
  3. C.
    4k+34k + 3
  4. D.
    4k4k
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Correct option: D

[2001]

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