call me a dumbass but .... (calc)

[Alex]

what is the integral of cos 2x ?

i cant seem to make up my mind between sin 2x + c or 1/2 * sin 2x + c or 1/2 * sin x + c

sorry about the dumb question hehe i dont know where else to ask right now 🙁

 

[Alphazero]

1/2 * sin(2x)

 

[Alex]

Originally posted by: Alphazero
1/2 * sin(2x)

thx! saved me a lot of grief! 🙂

 

[Paul180]

When your not sure, always remember that you can do the derivative to check to see if the integral is correct 1/2 sin 2x + c when derivitized = cos 2x + 0 so that would be correct

 

[Ausm]

Dumbass !! Well you asked for it 😉

Ausm

 

[JetBlack69]

Originally posted by: Paul180
When your not sure, always remember that you can do the derivative to check to see if the integral is correct 1/2 sin 2x + c when derivitized = cos 2x + 0 so that would be correct

exactly, saved me many hours of pain in calc!

 

[guyver01]

Originally posted by: Paul180
When your not sure, always remember that you can do the derivative to check to see if the integral is correct 1/2 sin 2x + c when derivitized = cos 2x + 0 so that would be correct

fvck laymans... do you speak english!

😕

 

[Alex]

Originally posted by: ausm
Dumbass !! Well you asked for it 😉

Ausm

😛

hjahja

edit: not sure how those js got in that haha but whatever 😀