Definite integration involving multiple angle of sine.

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Discussion Overview

The discussion revolves around the definite integral of the function sin²(nx)/sin²(x) from 0 to π. Participants explore methods for solving this integral, particularly focusing on the use of mathematical induction and questioning its appropriateness in this context.

Discussion Character

  • Mathematical reasoning, Debate/contested

Main Points Raised

  • One participant mentions using mathematical induction to arrive at a result for the integral but seeks a potentially better method.
  • Another participant questions the validity of using induction without providing a specific result, indicating a lack of clarity in the initial approach.
  • Some participants provide specific values for n (n=1, n=2) and claim to derive results of π, suggesting a generalization for n, while expressing doubt about the method used.
  • There is a challenge regarding the understanding of mathematical induction, with participants questioning whether it is being applied correctly in this scenario.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the appropriateness of using mathematical induction for this integral, and there are competing views on the validity of the method and the results derived from it.

Contextual Notes

There are indications of confusion regarding the application of mathematical induction, and participants express uncertainty about the correctness of the method used to solve the integral.

anirudhsharma1
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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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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!
 
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.
 
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?
 

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