29 Videos for "inverse cosine"

Using the Inverse Trigonometric Functions  Problem 1
Math › Precalculus › Advanced Trigonometry
How to prove an identity that involves sin^1(x) and cos^1(x). 
Solving Trigonometric Equations  Problem 1
Math › Trigonometry › Advanced Trigonometry
How to solve a simple cosine equation: cos x = ?2/2. 
Solving Trigonometric Equations  Problem 1
Math › Precalculus › Advanced Trigonometry
How to solve a simple cosine equation: cos x = ?2/2. 
Solving Trigonometric Equations  Problem 3
Math › Trigonometry › Advanced Trigonometry
How to solve a simple trig equation involving secant. 
Solving Trigonometric Equations  Problem 3
Math › Precalculus › Advanced Trigonometry
How to solve a simple trig equation involving secant. 
The Angle Between Planes  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the angle between two planes. 
Vector Operations in 3D  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the angle between two vectors in three dimensions. 
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.