Techniques of Differentiation - Derivatives of Trigonometric Functions

Techniques of Differentiation - Derivatives of Trigonometric Functions

Secondary 4
  1. Let \(\mathrm{f}(x) = \sin x\). Show that \(\mathrm{f}'(x) = \cos x\) by using differentiation from first principles.
  2. Let \(\mathrm{g}(x) = \cos x\). Show that \(\mathrm{g}'(x) = -\sin x\) by using differentiation from first principles.

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