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28 May, 07:52

One solution to a quadratic function, f, is given below.

√7 + 5i

Which of the following statements is true about the given function?

1) The other solution to function f is - √7 + 5i.

2) The other solution to function f is √7 - 5i.

3) Function f has no other solutions.

4) The other solution to function f is - √7 - 5i.

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Answers (1)
  1. 28 May, 08:18
    0
    The correct option is (2)

    For any quadratic equation: ax2 + bx + c = 0.

    The complex roots are expressed in the form a ± bi.

    where a is the real part

    & b is the imaginary part.

    Since, one root is √7 + 5i, therefore the other root will be of the form √7 - 5i.

    Hence, option (2) is correct.
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