Six Trigonometric Functions

Trigonometry Mnemonic

Sohcahtoa, the Indian princess of Trigonometry

SOH
sin θ = opposite/hypotenuse

CAH
cos θ = adjacent/hypotenuse

TOA
tan θ = opposite/adjacent

Basic Trigonometry Videos:

Basic Trigonometry : Introduction to trigonometry
http://www.khanacademy.org/video/basic-trigonometry

Basic Trigonometry II: A few more examples using SOH CAH TOA
http://www.khanacademy.org/video/basic-trigonometry-ii

Radians and degrees : What a radian is. Converting radians to degrees and vice versa.
http://www.khanacademy.org/video/radians-and-degrees

Using Trig Functions : Using Trigonometric functions to solve the sides of a right triangle
http://www.khanacademy.org/video/using-trig-functions

Using Trig Functions Part II
http://www.khanacademy.org/video/using-trig-functions-part-ii

The unit circle definition ...

Read more →
0

Intro to Logarithm Properties

Advanced Algebra: Intro to Logarithm Properties

Logarithm Addition Property

ab = c | loga c = b

 logB + logB C = logB (A*C)     (B = Base)

log2 8 + log2 32 = log2 (256)

3           5                 8

Logarithm Subtraction Property

ab = c | loga c = b

logB A – logB C = logB (A/C) (B = Base)

log3 1/9 + log3 89 = log3 (1/9 * 1/81) 

-2           -4              -6

Logarithm Multipication Property

A * logB C = logB (CA) (B = Base)

3 * log2 8 = ...

Read more →
0

Java Math.PI Circle Radius

Mountain State University Java Assisgnment

2.28 (Diameter, Circumference, and Area of a Circle

Write an application that inputs from the user the radius of a circle as an integer and prints the circle’s diameter, circumference, and area using the floating-point 3.14159 for PI.

Java circlePi.java Source Code

import java.util.Scanner;

public class circlePi {

public static void main( String[] args )
{
Scanner input = new Scanner( System.in );

int cRadius; //radius of circle

System.out.print( "Enter the radius of a circle " ); // prompt for user input
Read more →

0
Page 2 of 2 12