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conjugate
- Of one root of an equation, another number that is a root of the same equation. Thus, if x2 + 2x - 3 = 0, the numbers 1 and -3 are conjugates. If one root of an equation is a complex number of the form a + bi, then it is a fundamental theorem of algebra that it has a complex conjugate of the form a - bi, also a root of the equation. Complex binomials are those such that (a + b) and (a - b) which differ only by one sign. Another conjugate of (a + b), though not of (a - b), is (-a + b).
- Conjugate angles add up to 360°.
- Conjugate lines of a conic section have the property that each contains the pole point of the other, while conjugate points of a conic have the property that each lies on the polar line of the other.
In general, conjugate indicates that there is a symmetrical relationship between two objects A and B; in other words, there is an operation that will turn A into B and B into A.
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