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  • 2025 October(J08) Math Question 10

    Number Types & Properties

    - Complex Number

    Choice C

    z2=−9z^2 = -9z2=−9 z=±−9=±3iz = \pm\sqrt{-9} = \pm 3iz=±−9​=±3i

    3i3i3i is one of the solutions.

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