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to write an expression as a product of its factors.
an angle that is measured upwards from the horizontal plane.
a pair of surds which multiply together to give a rational number..
a periodic function is one that repeats after a given interval. The period is therefore the...
the maximum point on a curved graph is the point at which a graph changes from an increasing...
the set of possible y-values (values of the dependent variable) for a function.