- #1
n0_3sc
- 243
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Out of curiosity there are several trig functions that can be integrated (WITHOUT the use of trig identities) using Integration by Substitution.
One particular example is this:
sin(x)cos(x) dx
Integrating this with substitution u = cos(x) works out fine.
HOWEVER integrating with substitution u = sin(x) does not.
Can someone please explain why this is, and how to distinguish what substitution to make?
One particular example is this:
sin(x)cos(x) dx
Integrating this with substitution u = cos(x) works out fine.
HOWEVER integrating with substitution u = sin(x) does not.
Can someone please explain why this is, and how to distinguish what substitution to make?