Conjugate (algebra)
In algebra, the conjugate of a binomial is another binomial formed by negating the second term of original binomial.[1] The conjugate of x + y is x − y, where x and y are real numbers. If y is imaginary, the process is termed complex conjugation: the complex conjugate of a + bi is a − bi, where a and b are real.
Differences of squares
In a commutative ring, an expression of the form
can be factored to give
where one factor is the conjugate of the other. This can be useful when trying to rationalize a denominator containing radicals.
See also
References
- ↑ "Conjugate". www.mathsisfun.com. Retrieved 2017-06-20.
External links
- Rationalizing the Denominator from Mathwords.com
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