TRIGONOMETRY

TRI - 3
GONO- ANGLE
METRY- MEASUREMENT

Trigonometry is one of the important branch in mathematics which plays a vital role in almost all branches of 
science. Trigonometry deals with the relationship of the sides and angles of a right angled triangle. There are
six trigonometric ratios or functions as given below.

consider a right angled triangle

Now let us see the trigonometric ratios on a unit circle.

1. Sine ratio in unit circle.

2. Cosine ratio in unit circle.

3.Tangent ratio in unit circle.

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4. Cosecant ratio in unit circle

5.Secant ratio in unit circle.

6.Cotangent ratio in unit circle