What is the purpose of cosecant, secant and cotangent since you can use sine, cosine and cotangent to find sides in a right angled triangle? If it is so.

4 minutes ago, Brainee said:

What is the purpose of cosecant, secant and cotangent since you can use sine, cosine and cotangent to find sides in a right angled triangle? If it is so.

Stenography

You could ask what's the purpose of anything in mathematics?

41 minutes ago, Brainee said:

What is the purpose of cosecant, secant and cotangent since you can use sine, cosine and cotangent to find sides in a right angled triangle? If it is so.

Not every problem is finding the sides of a right triangle.

There are solutions to integrals that use the other trig functions.

1 hour ago, Brainee said:

What is the purpose of cosecant, secant and cotangent since you can use sine, cosine and cotangent to find sides in a right angled triangle? If it is so.

Here is a section of questions from an old trig textbook, involving the use of the secant, cosecant and cotangent.

If you look in tables of standard integrals you will find these fromulae employed to solve the integrals, as swansont says.

 

 

In case you think this is purely academic showing off, here is a practical use of the cotangent, much used in cartography and surveying.

 

https://en.wikipedia.org/wiki/Tienstra_formula

 

What is difference in work area between sin, cos, tan and csc, sec, cot?

37 minutes ago, Brainee said:

What is difference in work area between sin, cos, tan and csc, sec, cot?

I know you can write more than repeating you first very short question.

This one sided communication is becoming very tiresome.