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This page provides a list of educational videos related to Reciprocals. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Reciprocals.
Reciprocal of a Mixed Number
By Khan Academy
This video shows the student how to find the reciprocal of a mixed number.
Reciprocal trig functions
By Khan Academy
Sal finds all six trigonometric ratios (sine, cosine, tangent, secant, cosecant, and cotangent) of an angle in a given right triangle.
Reciprocal trig functions
By Khan Academy
Sal is given two sides in a right triangle and the cotangent of one of the angle, and he uses this information to find the missing side.
Dividing whole numbers by unit fractions
By Khan Academy
Dividing a whole number by a fraction? Turn the tables and multiply by the reciprocal of the fraction. Boom!
Dividing whole numbers by unit fractions
By Khan Academy
Dividing a whole number by a fraction? Turn the tables and multiply by the reciprocal of the fraction. Boom!
Dividing whole numbers by unit fractions
By Khan Academy
Dividing a whole number by a fraction? Turn the tables and multiply by the reciprocal of the fraction. Boom!
Dividing a whole number by a fraction
By Brian Mclogan
To divide two fractions, we multiply the first fraction by the reciprocal of the second fraction.
Dividing whole numbers by unit fractions
By Khan Academy
Dividing a whole number by a fraction? Turn the tables and multiply by the reciprocal of the fraction. Boom!
Division of Rational Expressions
By MrLovellFord
Shows how to divide two rational expressions by mulitplying the first expression by the reciprocal of the second, then simplifying.
Equation of the normal line at a point
By TheIntegralCALC
http://integralcalc.com/ Learn how to find the equation of the normal line at a given point. To find the equation of the normal line, you'll need to first calculate the derivative of the function, then plug the given point into the derivative to find the slope of the tangent line. Plug the slope and the given point into the point-slope formula for the equation of the line to find the equation of the tangent line. Then take the negative reciprocal of the slope of the tangent line to find the slope of the normal line, which is the line perpendicular to the tangent line. Finally, plug the new slope and the given point into the point-slope formula for the equation of the line to find the equation of the normal line
COMPASS Math Test Prep | MathHelp.com
By MathHelp.com
This lesson covers the sum of the interior angles of a polygon. Students learn the definitions of vertices and diagonals of polygons. Students also learn the following formulas related to convex polygons. The sum of the measures of the interior angles of a polygon is always 180(n -- 2) degrees, where n represents the number of sides of the polygon. The sum of the measures of the exterior angles of a polygon is always 360 degrees. Students are then asked to solve problems using these formulas.
Trigonometric Substitution
By The Organic Chemistry Tutor
This calculus video tutorial provides a basic introduction into trigonometric substitution. It explains when to substitute x with sin, cos, or sec. It also explains how to perform a change of variables using u-substitution integration techniques and how to use right triangle trigonometry with sohcahtoa to convert back from angles in the form of theta to an x variable. There's plenty of examples and practice problems in this lesson.
