PREPARING Become a MATIZEN What is Math Planet ? A Crash Course on      Algebra A Crash Course on      Geometry   EXPLORING Advanced Math Topic Customized Lessons SAT & ACT Reviews   INTERACTING Math Games Discussion Forum Math Live! Chat   COLLECTING Math Search MATIZEN Qualifi-      -cation Test Acknowledgements The Creatures Behind      the Math Planet        ©1998 ThinkQuest        team 16284    All rights reserved

Trigonometry

Now we can translate this into arcsin 4x = 1. Let’s assume 4x = y and we get arcsin y = 1. The result is y = P + 2P K. Because y = 4x, so we divide y by 4 and P /2 + 2P K by 4, and we get P /8 + P K/2 for x.

# The Practical Use of Trigonometry

There are many uses of trigonometry. The most common use is to calculate linear velocity. The equation for linear velocity is V = Wr, where V is the linear velocity, W is the angular velocity in radian which is acquire by multiply the speed by 2P , and r is radius of the thing that is rotating. Following is a sample problem:

What is the linear velocity of a wheel if it rotates 45 times a minute, and its radius is 1 ft?

V = Wr

V = 45 x 2P x 1

V = 90P Rotation Feet per Minute.

Trigonometry is the most important concept of advanced math.  Its uses can be seen almost anywhere.  So having a good knowledge of trigonometry will help you both in your lives and your works.  Please take a few minutes break and click here to continue. (You can also click on the drop-down list below to jump to any chapter you like.)

You can also jump to the chapter of your choice by using the drop-down list at below.