Even Function Integrals: Can They Always Equal Zero?

Click For Summary
SUMMARY

The integral of two even functions does not automatically equal zero unless the interval of integration is symmetric about the origin. In the discussion, the integral of cos(t)*cos(2nt) from 0 to pi/2 is examined, and it is clarified that this integral does not necessarily equal zero. Additionally, the integral of cos(t)*sin(2nt) from 0 to pi/2 is also addressed, emphasizing that non-symmetric intervals prevent definitive conclusions regarding the integral's value.

PREREQUISITES
  • Understanding of even and odd functions in calculus
  • Familiarity with integral calculus concepts
  • Knowledge of trigonometric functions and their properties
  • Experience with definite integrals and their evaluation
NEXT STEPS
  • Research the properties of even and odd functions in integration
  • Learn about symmetric and non-symmetric intervals in definite integrals
  • Explore the evaluation of integrals involving trigonometric functions
  • Study the implications of function symmetry on integral results
USEFUL FOR

Mathematicians, calculus students, and educators looking to deepen their understanding of integrals involving even functions and their properties.

math&science
Messages
24
Reaction score
0
Would the integral of two even functions be 0 or not? I have an integral cos(t)*cos(2nt)that goes from 0 to pi/2 and was wondering if that would automatically be 0 or would the integral of cos(t)*sin(2nt) from 0 to pi/2 be 0? Thanks!
 
Physics news on Phys.org
If the interval of integration is not SYMETRIC (ex: (-L,L), you cannot conclude.
 

Similar threads

  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 14 ·
Replies
14
Views
3K
Replies
1
Views
2K
Replies
2
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
4
Views
3K