Ex: Find sin(a+b) and cos(a-b) given sin(a) and cos(b)

This video explains how to determine the sine and cosine of a sum and difference of angles given the sin(a) and cos(b).

Ex: Law of Cosine Application (Cable Car to Top of Mountain)

This video explains how to determine the length of a side of an obtuse triangle using right triangle trigonometry and the law of cosines.

Ex: Determine Arc Length of a Helix Given by a Vector Valued Function

This video explains how to determine the arc length of a space curve given by parametric equations.

Ex: Determine Arc Length of a Spiral Given by Parametric Equations

This video explains how to determine the arc length of a plane curve given by parametric equations.

Ex: Determine a Sine Function Value Using a Alternative Half Angle Identity (Radians)

This video provides an example of how to determine the exact value of sin(pi/12) using a half angle identity using an alternative half angle identity.

Ex: Determine a Sine Function Value Using a Half Angle Identity (Radians)

This video provides an example of how to determine the exact value of sin(pi/12) using a half angle identity.

Ex: Determine a Cosine Function Value Using a Alternative Half Angle Identity (Degrees)

This video provides an example of how to determine the exact value of cos(105 deg) using a half angle identity using an alternative half angle identity.

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