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    i'm kind of stuck on the last one (putting it in the other order, that is). i tried integrating dy from -x to sqrt(x) and x from -1 to 1 but that didn't work out.
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    (Original post by StarvingAutist)
    i'm kind of stuck on the last one (putting it in the other order, that is). i tried integrating dy from -x to sqrt(x) and x from -1 to 1 but that didn't work out.
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    EDIT
    look at Q30 in this link
    (very similar to yours)
    http://madasmaths.com/archive/maths_..._cartesian.pdf
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    (Original post by StarvingAutist)
    i'm kind of stuck on the last one (putting it in the other order, that is). i tried integrating dy from -x to sqrt(x) and x from -1 to 1 but that didn't work out.
    Name:  24.png
Views: 69
Size:  17.7 KB
    You need to split it into two separate integrals when you change order - you are integrating from -x \to 1 in [-1,0] and from \sqrt{x} \to1 in [0,1] - this should be clear if you sketch out the region - you cant cover the region with a single strip bounded by the same functions at both ends over [-1,1].
 
 
 
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