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Browse Classroom Capsules and Notes

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Use calculus to verify trig identities.

Another way to find the derivative of \(\sin x\)

A simple tip for graphing polynomials and rational functions

Finding the volume and centroid of a step pyramid

Another tabular method for integration by parts

Four simple useful tips for beginners of integration

Some short cuts of differentiations based upon partial fractions.

An unconventional way to find the derivatives of inverse trig functions

Measure of the sensitivity of the bond's price to changes in interest rates

The author models the falling of the ladder against a vertical wall making no use of the force exerted by the wall.