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Relations and Functions: This article is an informative source for students from Class 9 to Class 12 to understand the definition, formula, calculation and more for the Relation and Functions.
Ivan Baggs, Functions with a Closed Graph, Proceedings of the American Mathematical Society, Vol. 43, No. 2 (Apr., 1974), pp. 439-442 ...
National 5 Working with the graphs of trigonometric functions Phase angle Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points.
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