Understand the midpoint rule and how the midpoint method works in calculus. With the help of examples, learn to calculate area using the midpoint rule formula.

Learn how to use the sum of an infinite geometric series formula in this 5-minute video lesson. Enhance your math skills by taking a quiz for practice.

Read about Riemann Sums. Learn to find the area under a curve using the Left Riemann Sum, Midpoint Riemann Sum, and Right Riemann Sum with the help of examples.

This lesson shows how to locate interior and exterior angles in a regular polygon, use formulas to calculate their individual values and their sums.

The formula used to solve the sum of an arithmetic sequence is: n/2 2a + (n-1)d, where n = the number of terms to be added, a = the first term, and d = the constant value.

Learn to define infinite series. Learn how to find the sum of an infinite series. Discover the infinite series formula and see examples of infinite series.

Learn how to approximate definite integrals using trapezoidal Riemann sums and non-uniform partitions, and see examples that walk through sample problems step-by-step for you to …

Learn how to find the sum of a geometric sequence and the formula used. See examples of geometric sum equations and how to find the sum of a geometric series.

Learn about the interior angle theorem. Use the interior angle formula to find the measure of each angle of a polygon and determine its number of sides.

Explore the product-to-sum identities in trigonometry in a 5-minute video lesson. Learn derivation using its formula and examples, then take an optional quiz!