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Integral calculus
  Trigonometric integrals
 Evaluating trigonometric integrals using substitutions and trigonometric identities examples
 Example:  Evaluate
Solution:
 Example:  Evaluate
 Solution:
 Example:  Evaluate
 Solution:
 Example:  Evaluate
 Solution:
 Evaluating trigonometric integrals using substitution tan x = t
 Example:  Evaluate
 Solution:
  Trigonometric integrals of the form
∫ sin (m x) sin (n x) dx,    ∫ sin (m x) cos (n x) dx,    ∫ cos(m x) cos (n x) dx,
  in these cases we use the following product to sum formulas,
and the addition formulas.
 Example:  Evaluate
 Solution:
 Example:  Evaluate
 Solution:
 
 
 
 
 
 
 
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