ALEKS
solving absolute value equations (Equations and equalities)
If |"A" | = b, then A = b and A = -b
(s-t)(x). do you distribute negative? (Functions and Graphs)
YES
cotangent, cosecent, and secent ratios (Trigonometry)
cotangent flips tangent co*s*ecent flips *s*ine secent flips cosine
how to solve a fraction divided by a fraction (Rational Expressions)
multiply by reciprocal!
raising two fractional exponents by a power (Rational Expressions)
note that the 2 doesn't Change
Transformations (Functions and Graphs)
x inside y outside x are reversed order except reflections: x outside, y inside
build the magic Hexagon (Trigonometry)
1. Start with tan(x) = sin(x)/cos(x) quotient identity 2. COtangent is across from tangent 3. COsecent, the other CO, is clockwise to cotangent (csc) 4. Sececnt is clockwise to cosecent.
Greatest common *factor* VS least common *multiple*
factors are smaller numbers than input number multiples are larger numbers than input number
covert radians to degrees and vis versa (Trigonometry)
radians to degrees : radians* *(180/pi) degrees to radians: degrees*(pi/180) note: pi = 180
finding common denominators for complex fractions (Rational Expressions)
use common denominator method when denominators don't match for adding/subtracting