Forgot my trig integral tricks

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SUMMARY

The integral ∫[sin4(t)cos2(t) + cos4(t)sin2(t)]dt can be simplified by factoring out cos2(t)sin2(t), leading to a more manageable expression. The discussion highlights the importance of recognizing patterns and identities, such as half-angle identities, to solve trigonometric integrals efficiently. Additionally, this integral is related to the area of a hypercycloid, calculated as 3πa2/8.

PREREQUISITES
  • Understanding of trigonometric identities, particularly half-angle identities
  • Familiarity with integral calculus and techniques for solving integrals
  • Knowledge of hypercycloids and their geometric properties
  • Experience with substitution methods in integration
NEXT STEPS
  • Study trigonometric integral techniques, focusing on substitution and factoring
  • Explore half-angle identities and their applications in integration
  • Research hypercycloids and their mathematical properties
  • Practice solving complex integrals involving products of sine and cosine functions
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Students and educators in calculus, particularly those focusing on integral calculus and trigonometric functions, as well as anyone interested in the geometric applications of integrals in relation to hypercycloids.

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Homework Statement



∫[sin4(t)cos2(t) + cos4(t)sin2(t)]dt



The Attempt at a Solution



Is there any way to do this integral using a substitution, or do I need to just split it into two integrals and apply a very messy series of half-angle identities?

Thanks.
 
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I would first factor cos(t)^2*sin(t)^2 out and look at what's left.
 
DOH! That was stupid... finished. :)

Thanks a ton! BTW, this integral is involved in the area of a hypercycloid, which apparently is 3πa2/8.
 

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