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The triangle formed by the complex numbers \( z, i z, i^{2} z \) is...
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The triangle formed by the complex numbers \( z, i z, i^{2} z \) is :
(a) equilateral
(b) isosceles
(c) right angled
(d) isosceles but not right angled
(a) equilateral
(b) isosceles
(c) right angled
(d) isosceles but not right angled