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iris [78.8K]
2 years ago
14

True or False? y = cos x and y = sec x have the same y-intercept.

Mathematics
1 answer:
Serga [27]2 years ago
5 0

Answer:

True

Step-by-step explanation:

They both have a y-intercept at (0, 1)

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The discriminant of a quadratic equation is equal to -8, which statement describes the roots?
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Answer:

  (a)  There are two complex roots

Step-by-step explanation:

The discriminant of a quadratic function describes the nature of its roots:

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__

Your discriminant of -8 is <em>negative</em>, so it indicates ...

  There are two complex roots

_____

<em>Additional comment</em>

We generally study polynomials with <em>real coefficients</em>. These will never have an odd number of complex roots. Their complex roots always come in conjugate pairs.

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