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Earn +20 ptsQ: What is the polynomial roots to 1 5i and -3i?
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What is the answer if you Find all the roots of the equation x4 - 2x3 plus 14x2 - 18x plus 45 0 given that 1 plus 2i is one of its roots.?
The four roots are:1 + 2i, 1 - 2i, 3i and -3i.
What are some imaginary numbers?
i is the Imaginary Unit, equal to sqrt(-1). So i and any real number multiplied by i will all be imaginary numbers. Here are some: i, -i, 5i, -3i, i*pi, etc.
What are the roots of the polynomial function 3x2-13x 4?
(3x - 1)(x - 4) so roots are 1/3 and 4
What is the reciprocal of 1 plus 3i?
1/(1+ 3i)
If one of the roots of the quadratic equation is 1 plus 3i what is the other root?
The answer to the question, as stated, is that the other root could be anything. However, if all the coefficients of the quadratic equation are real numbers, then the other root is 1 minus 3i.
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