Definite integration involving multiple angle of sine.

In summary, the conversation is about using mathematical induction to solve the integral of sin^2(nx)/sin^2(x) from 0 to pi. The person tried using induction and got the correct result, but is wondering if there is a better method. They also generalized the solution for 'n' but are unsure if it is the proper approach. The other person questions their understanding of induction.
  • #1
anirudhsharma1
14
0
pi
∫sin^2(nx)/sin^2(x) dx
0

I tried using mathematical induction and did arrive at the correct result but was wondering if a better method could be used to solve it?
 
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  • #2
anirudhsharma1 said:
pi
∫sin^2(nx)/sin^2(x) dx
0

I tried using mathematical induction and did arrive at the correct result but was wondering if a better method could be used to solve it?
How do you use induction here? You haven't even given us a result!
 
  • #3
putting n=1,n=2
we get pi, and pi as the result
so i generalised it for 'n'.
thats the reason i asked for the solution because this is definitely an improper method.
 
  • #4
anirudhsharma1 said:
putting n=1,n=2
we get pi, and pi as the result
so i generalised it for 'n'.
thats the reason i asked for the solution because this is definitely an improper method.
Are you confused about what induction means?
 

FAQ: Definite integration involving multiple angle of sine.

What is definite integration?

Definite integration is a mathematical process used to find the area under a curve between two points on the x-axis. It is represented by the symbol ∫ and involves finding the antiderivative of a given function.

What is the multiple angle formula for sine?

The multiple angle formula for sine is sin(nx) = n(sin x)cos^n-1 (x) - C. This formula is used to simplify expressions involving multiple angles of sine.

How do you integrate multiple angles of sine?

To integrate multiple angles of sine, you can use the multiple angle formula for sine or other trigonometric identities to simplify the expression. Then, you can use the standard integration techniques such as substitution, integration by parts, or trigonometric substitution.

Why is definite integration involving multiple angles of sine important?

Definite integration involving multiple angles of sine is important in various fields of science and engineering, such as physics, astronomy, and electrical engineering. It is used to solve problems involving periodic functions and to calculate areas, volumes, and other quantities in real-life applications.

What are some tips for solving definite integration involving multiple angles of sine?

Some tips for solving definite integration involving multiple angles of sine include using trigonometric identities to simplify the expression, choosing the appropriate integration technique, and paying attention to the limits of integration. It is also helpful to practice and familiarize yourself with common integration patterns.

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