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# FP2 integration watch

1. Find the integral of cosx(1-cosx)^0.5 dx, using the substitution u = cos1/2x

Thanks
2. (Original post by AvM4N)
Find the integral of cosx(1-cosx)^0.5 dx, using the substitution u = cos1/2x

Thanks
Use the substition u = cos1/2 x

You're welcome

[i.e: not doing your homework for you, put in and show some effort]
3. (Original post by Zacken)
Use the substition u = cos1/2 x

You're welcome

[i.e: not doing your homework for you, put in and show some effort]
you are kidding aren't you? It's not homework, i'm choosing to do it. and i've been looking at it for 20 minutes and didn't get anywhere- tried using the addition formulae and it wasn't working- so yes, i already have 'put in'
4. (Original post by AvM4N)
you are kidding aren't you? It's not homework, i'm choosing to do it. and i've been looking at it for 20 minutes and didn't get anywhere- tried using the addition formulae and it wasn't working- so yes, i already have 'put in'
Use the substitution given do some C4 maths, things will cancel
5. (Original post by AvM4N)
you are kidding aren't you? It's not homework, i'm choosing to do it. and i've been looking at it for 20 minutes and didn't get anywhere- tried using the addition formulae and it wasn't working- so yes, i already have 'put in'
Whether or not it's homework is irrelevant. Show us your working, we can't help you unless you show or at least tell us what you've done. You've said you've used the sub, what exactly have you tried? Show.

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