Rational exponents, simplifying and rationalising surds, solving exponential equations, and applying all three to growth and decay problems.
4 free units in this chapter
Grade 11 extends the exponent laws to fractional powers, linking exponents and roots permanently.
About 3 minA surd is an exact irrational root. Simplifying keeps answers exact and is expected in the exam.
About 3 minExponential equations hide the unknown in the exponent; the trick is to make the bases match.
About 3 minExponential models describe populations, bacteria, radioactive decay and money.
About 3 min