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How do you state the excluded values for rational expressions? The only rule with rational expression is that the denominator can't be zero, since you can't divide by zero. Remember that an expression is said to be rational only if variables appear at the denominator: thus \frac {\cos (x)+3x^2} {2} is NOT a rational expression.
Mean: Average. Median: Middle (put numbers in order and find middle) Mode: “Most” (number that appears the most) Q1: Quartile 1=Median of first half of data Q2: Quartile 2=Median of all data. Q3: Quartile 3=Median of second half of data.
If integrating ô dx where the degree (largest exponent) of P ( x ) is smaller than the õ Q x ( ) degree of Q ( x ) then factor the denominator as completely as possible and find the partial fraction decomposition of the rational expression. Integrate the partial fraction decomposition (P.F.D.).
25 Σεπ 2018 · Algebra Cheat Sheet - This is as many common algebra facts, properties, formulas, and functions that I could think of. There is also a page of common algebra errors included. Currently the full version of the cheat sheet is 4 pages long.
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x3 + a3 = (x + a) x2 ax + a2. x3 a3 = (x a) x2 + ax + a2. x2n a2n = (xn an) (xn + an) If n is odd then, xn an = (x a) xn 1 + axn 2. b2 4ac 2a If b2 4ac > 0 – Two real unequal solns. If b2 4ac = 0 – Repeated real solution. If b2 4ac < 0 – Two complex solutions.
