Equation of Tangent Line and Normal Line to a Cubic Function

This video explains how to find the equation of a tangent line and normal line to a cubic function at a given point.

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Trig Function Values of Inverse Trig Function Values Using Reference Triangles (Not Q1)

This video explains how to evaluate expressions that are in the form of trigonometric function values of inverse trigonometric function values using reference triangles.

Inverse Trig Function Values of Trig Function Values Using Ref Triangles (Nice Angles A)

This video explains how to evaluate expression that are in the form of inverse trigonometric function values of trigonometric function values using reference triangles.