Integration... (1 Viewer)

[shaon0]

Integrate: (sinx.dx)/(1+cosx)

 

[conics2008]

hey buddy use this rule

f'(x)/f(x) = ln{f(x)}

here ill show u the steps..

S sinx/1+ cos x

we can see that 1+cosx when you find d/dx it gives us -sinx

therefore

-S - sinx/1+cosx follows that rule i just gave you...

= -ln(1+cosx )

there is another way where you can use t formula where tan a/2 = t but this is alot longer but very effective in areas such as

S 1/sinx+cosx dx

 

[shaon0]

hey buddy use this rule

f'(x)/f(x) = ln{f(x)}

Okay.