Integrals of Trigonometric Functions

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SUMMARY

The discussion focuses on solving three specific integrals involving trigonometric functions and algebraic expressions. The first integral, \(\int((\cos(x))^6)dx\), can be approached using reduction formulas or integration by parts. The second integral, \(\int(x^3 \sqrt{x^2 - 1})dx\), requires substitution with \(w = x^2 - 1\). The third problem involves solving the differential equation \(\frac{dy}{dx} = \frac{(2y + 3)^2}{(4x + 5)^2}\) through separation of variables.

PREREQUISITES
  • Understanding of integral calculus, specifically trigonometric integrals
  • Familiarity with integration techniques such as reduction formulas and integration by parts
  • Knowledge of substitution methods in integration
  • Basic concepts of differential equations and separation of variables
NEXT STEPS
  • Study reduction formulas for trigonometric integrals
  • Learn integration by parts with examples
  • Explore substitution methods in integral calculus
  • Review separation of variables in solving differential equations
USEFUL FOR

Students and educators in calculus, mathematicians focusing on integral calculus, and anyone seeking to enhance their skills in solving trigonometric integrals and differential equations.

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I have three problems that I'm having a hard time with. I'd appreciate any help with
any of the three problems.

[tex]\int((cos(x))^6)dx[/tex]

AND

[tex]\int(x^3 * sqrt(x^2 - 1)[/tex]

AND

Solve for y (separation of variables):
dy/dx = ((2y + 3)^2)/((4x + 5)^2)

THANKS soo much.
 
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first one reduction formuls or integration by parts (integrate cos(x) differentiate cos(x)^5)
second one substitute x^2-1->w
third one just separate and integrate
 

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