80 Videos for "addition"

The Resultant of Two Forces  Concept
Math › Precalculus › Vectors and Parametric Equations
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction. 
Navigation Problems  Concept
Math › Precalculus › Vectors and Parametric Equations
How we measure airspeed, wind, groundspeed, and other variables in navigation. 
Components of a Force  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the components of the weight of a block parallel to and perpendicular to the surface of an inclined plane. 
The DoubleAngle Formulas  Problem 2
Math › Precalculus › Advanced Trigonometry
How to derive a tripleangle formula for cosine. 
The DoubleAngle Formulas  Problem 2
Math › Trigonometry › Advanced Trigonometry
How to derive a tripleangle formula for cosine. 
Components of a Force  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to use the component of an object's weight parallel to the surface of an inclined plane to find the weight of the object. 
Solving Equations with Decimals  Problem 2
Math › PreAlgebra › Decimals and Percents
Solving equations with addition or subtraction of decimals 
Unit Vectors  Concept
Math › Precalculus › Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j. 
Adding Vectors  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to plot the sum of two vectors (one the opposite of the other) and find its magnitude. 
The Resultant of Two Forces  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the resultant of two forces at an acute angle (45 degrees). 
The DoubleAngle Formulas  Concept
Math › Precalculus › Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas. 
The DoubleAngle Formulas  Concept
Math › Trigonometry › Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas. 
Unit Vectors  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to convert a vector into component form when it is expressed in terms of the unit vectors i and j. 
The Midpoint and Distance Formulas in 3D  Concept
Math › Precalculus › Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions. 
The Dot Product of Vectors  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to compute the dot product of two vectors, and how to demonstrate that the dot product distributes over addition. 
Navigation Problems  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How we find the course and groundspeed of an airplane when we are given its velocity and the wind velocity. 
Navigation Problems  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How we find the course and groundspeed of a complicated airplane problem when we are given its velocity and the wind velocity at 210 and 270 degrees. 
Solving a Logarithmic Equation with Multiple Logs  Problem 2
Math › Precalculus › Exponential and Logarithmic Functions
How to solve a logarithmic equation by condensing one side with addition. 
Navigation Problems  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How we find the course and groundspeed of an airplane when we are given its velocity and the wind velocity. 
Solving a Logarithmic Equation with Multiple Logs  Problem 2
Math › Algebra 2 › Inverse, Exponential and Logarithmic Functions
How to solve a logarithmic equation by condensing one side with addition.