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sarahfsakrani
20.02.2020 •
Mathematics
Find a polynomial (with real coefficients) of degree 4 with zeros at -3 (multiplicity of 2) and -2i, and with 6 as the coefficient of x
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Ответ:
Step-by-step explanation:
If -2i is a root, then so is +2i, so
y = a(x+3)^2(x^2+4)
= a(x^4+6x^3+13x^2+24x+36)
Since we want 24a = 6, our final polynomial is
y = 1/4 (x^4+6x^3+13x^2+24x+36)
Ответ:
No, the points are in a linear pattern.
Step-by-step explanation:
Residual = actual value - predicted value
So our residual points are:
1, -2.4
2, -4.9
3, -6.2
4, -6
5, -7.9
As evidenced in the image, the points follow a linear pattern.