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

 

 'MATHEMATICS', when students hear this word they think as hard, boring and dull subject. Really mathematics is not like as one may think. Mathematics is a wonderful subject which has lot of applications to day to day life. Hence mathematics is rightly said '' the mother of sciences ''.  Every phenomena occurring in nature has its roots in mathematics. Mathematics becomes interesting subject when it can be felt or one can visualize the mathematical concepts or graphs of functions, curves etc.
               In this regard, here is a small attempt taken to help more and more students, and in particular students from rural side or a student who does not have a good experience in understanding mathematics. I also do not want to call a student a ''bright'' or ''weak'' in understanding mathematics, but it is due to his or her lack of experience in learning good mathematics or not doing mathematics regularly. Mathematics requires  patience, concentration and regularity. So i like the viewer to look at the subject in a different way and let this journey be pleasurable and happy feeling.