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markata

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17 years, 54 days
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These are answers submitted by markata

One more thing Joe is the...

markata 44
May 12 2008
0 1
And is the 3rd like this: restart; Int(Int(Int(x*y*z, x = -1 .. 2), y = 0 .. 2), z = -2 .. 2); value(%); Cause I got 0 for an answer and the worries me ?

One more thing Joe is the...

markata 44
May 12 2008
0 2
One more thing Joe is the first example true that Mariner gave: restart; Int( Int(x^2 + y^2,x=y-a..y), y=3*a..a); value(%); for this: 1) SS (x^2 + y^2) dxdy D: y=x, y=x+a, y=a, y=3*a, a>0 ??

Yeah, Ups, I typed...

markata 44
May 11 2008
0 0

Yeah, Ups, I typed with(VectorCalculus) for the #2 and forgot for #4 :S. Thanks ! I managed to do all of my homework thanks to you. Much apprecciated.

 Good luck to all of you !

 

My Maple11 could calculate...

markata 44
May 11 2008
0 1

My Maple11 could calculate that: / it display the same bellow /. Any reason why or that's the answer ? / Circle(<3/2,0>,3/2) / ?

PathInt(x-y, [x,y]=Circle(<3/2,0>,3/2));

And could you help for 1 last thing - a diff equition:

y'' - 2*y^2+2*y=4*exp(x)*sinx

Well my problem is that in...

markata 44
May 11 2008
0 0

Well my problem is that in every example that I have seen there is no constant like in my first examle / there it is 'a'/ .

For the first example are you sure these are the integral boundaries ? Aren't they x=y..y-a or ??

The 4th integral is curvilinear. 2nd - again double with some radius - no idea what to do. 3rd is multiple :S

This is a part of my homework - I've done the rest but these seem to me tough and 2 days reading and reading .. And Not sure how to do them so please help.

10x in advance

 

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