Yi XieCommon Math Mistake 1: Assuming that Function and Inverse Always CancelGenerally speaking a function and its inverse cancel each other out (when performed one after the other), but there is a very important…May 1, 2016May 1, 2016
Yi XieHigh School Math Tip 14: Speeding Up Partial Fraction CalculationsSuppose that you are asked to findApr 24, 2016Apr 24, 2016
Yi XieHigh School Math Tip 13: Using the Discriminant of a QuadraticThe discriminant of a quadratic is very useful when finding the solution directly is not required and/or is too algebraic intensive.Apr 17, 2016Apr 17, 2016
Yi XieHigh School Math Tip 12: Tackling Superannuation and Repayment with Time Value of MoneySuppose you are asked to find the total amount at the end of 20 years if $500 was invested at the beginning of every year at 6% p.a..Apr 10, 2016Apr 10, 2016
Yi XieHigh School Math Tip 11: Validating Points of Inflection by Looking at the Nature of the SolutionSuppose you are asked to find all points of inflection forApr 3, 2016Apr 3, 2016
Yi XieHigh School Math Tip 10: Solving Inequalities with Critical ValuesSuppose you are asked to solve:Mar 27, 2016Mar 27, 2016
Yi XieHigh School Math Tip 9: Using Cartesian Coordinates to Tackle Bearing ProblemsSuppose you are asked:Mar 20, 2016Mar 20, 2016
Yi XieHigh School Math Tip 8: Another Shortcut to Integration by PartsCredit goes to Seth Pal for showing me this technique.Mar 13, 2016Mar 13, 2016
Yi XieHigh School Math Tip 7: Shortcut to Integration by PartsLet u and v be functions of x. Then by the product ruleMar 6, 2016Mar 6, 2016
Yi XieHigh School Math Tip 6: Using Differentiation to IntegrateMost of the errors from integration can be avoided by differentiating your result and ensuring that the derivative matches the original…Feb 28, 2016Feb 28, 2016