give me five category of rational equation?
Answers
Step-by-step explanation:
The function R(x) = (sqrt(x) + x^2) / (3x^2 - 9x + 2) is not a rational function since the numerator, sqrt(x) + x^2, is not a polynomial since the exponent of x is not an integer.
The function R(x) = (x - 4) / x^(-2/3) + 4 is not a rational function since the denominator, x^(-2/3) + 4, is not a polynomial since the exponent of x is not a non-negative integer.
The definition you just got might be a little overbearing, so let's look at some examples of rational functions:
The function R(x) = (x^2 + 4x - 1) / (3x^2 - 9x + 2) is a rational function since the numerator, x^2 + 4x - 1, is a polynomial and the denominator, 3x^2 - 9x + 2 is also a polynomial.
The function R(x) = (-2x^5 + 4x^2 - 1) / x^9 is a rational function since the numerator, -2x^5 + 4x^2 - 1, is a polynomial and the denominator, x^9, is also a polynomial.
The function R(x) = 1 / ((x - 1)(x^2 + 3)) is a rational function since the numerator, 1, is a polynomial (yes, a constant is still a polynomial) and the denominator, (x - 1)(x^2 + 3), is also a polynomial (it's just in a factored form).
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