Integration and trigonometricfunctions

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SUMMARY

The integration problem discussed involves the expression 3sec(3x)(3sec(3x) + 2tan(3x))dx. The user correctly identifies the integrals of the components as tan(3x) + C and 6sec(3x) + C. The final answer is confirmed to be tan(3x) + 6sec(3x) + C, where the constant C can be simplified to +2C. The importance of verifying the result through differentiation is emphasized as a method to ensure accuracy.

PREREQUISITES
  • Understanding of integration techniques in calculus
  • Familiarity with trigonometric functions, specifically secant and tangent
  • Knowledge of antiderivatives and the constant of integration
  • Ability to differentiate functions to verify results
NEXT STEPS
  • Study integration techniques involving trigonometric functions
  • Learn about the properties of secant and tangent functions
  • Practice verifying antiderivatives through differentiation
  • Explore advanced integration methods such as integration by parts or substitution
USEFUL FOR

Students studying calculus, particularly those focusing on integration techniques, and anyone seeking to strengthen their understanding of trigonometric functions in mathematical analysis.

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Homework Statement


Integrate: 3sec3x(3sec3x+2tan3x)dx


Homework Equations





The Attempt at a Solution


Ok I just multiplied out and obviously got the integrals of both to be tan3x +c and 6sec3x+c
My question is does that make my final answer tan3x+6sec3x +c or +2c?

I swear this is the last integration question I will ask. For awhile.
 
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You can lump the constants together and just add a +C.

But, if I were you, I would differentiate my answer to see if is the correct antiderivative.
 

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