What is # int \ tan3xsec3x \ dx#?
1 Answer
May 10, 2017
# int \ tan3xsec3x \ dx = 1/3sec3x + C#
Explanation:
A standard trigonometry differential is:
# d/dx sec x = secxtanx iff int \ secxtanx \ dx = sec x \ \ (+C) #
We can see a very close similarity with this result and out integral, so note that:
# d/dx sec ax = asecaxtanax #
for constant
# int \ tan3xsec3x \ dx = 1/3sec3x + C#
