Loads and loads of formulas.
That's trigonometry. ;-)
If you work in engineering, you'll need trigonometry, and other advanced math topics, all the time. Otherwise, you can come along quite well without it, and will seldom find any practical use for it.
There are many formulas to find the area of a triangle although the most common is;A=1/2bh, where b=base and h=height
There are several topics under the broad category of trigonometry. * Angle measurements * Properties of angles and circles * Basic trigonometric functions and their reciprocals and co-functions * Graphs of trigonometric functions * Trigonometric identities * Angle addition and subtraction formulas for trigonometric functions * Double and half angle formulas for trigonometric functions * Law of sines and law of cosines * Polar and polar imaginary coordinates.
Probably you should start by looking up the double-angle formulas, reducing the "4a" to some combination of "2a".
The obvious answer is to impart a sound knowledge of the subject in the students. However, you probably want to know why anyone wants to learn trigonometry. The answer to that is this. Trigonometry is a mathematical tool which is almost essential to know if you want to understand how to build structures cheaply and effectively. With trig. it's easy to figure out where things are most likely to break and how thick structural parts must be to carry loads safely. Trig. is also very useful to understand waves - all sorts of waves such as radio waves and waves on water. Without trig. engineers would waste so much time trying to work things out that they'd never succeed in any job.
Greece introduced trignometry
Hipparchus
Trignometry
hipparcus a greek mathematician
=1/2=0.5
yes
It is the shortened (slang) form of trignometry.
There is no Contribution of Thales in the field of trignometry.........
trignometry
How tall is something that is too high to measure.
By constructing a right angle triangle which has trigonometrical properties associated with it
Ancient Indian mathmatician aryabhatta is credited as inventor of trignometry.