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Mathematics 8 Online
OpenStudy (anonymous):

Here is another attached problem

OpenStudy (anonymous):

OpenStudy (anonymous):

@eliassaab can you help me please

OpenStudy (anonymous):

ill post the questiion

OpenStudy (anonymous):

I helped you yesterday and you disappeared on me.

OpenStudy (anonymous):

ok i wont this time im serious

OpenStudy (anonymous):

please

ganeshie8 (ganeshie8):

area of triangle \(R\) = 3* area of triangle \(S\) that means area in xy is worth 3 times the area in uv \(\mathbf{dx dy = 3dudv} \)

ganeshie8 (ganeshie8):

for working bounds : inner integral : 0 -> 1-u outer integral : 0 -> 1 \(\mathbf{\int \limits_0^{1} ~\int \limits_0^{1-u} (2u+v)^2(u+2v)^3(3dudv)}\)

ganeshie8 (ganeshie8):

its same as : \(\mathbf{\int \limits_0^{1} ~\int \limits_0^{u} (2u+v)^2(u+2v)^3(3dvdu)} \)

OpenStudy (anonymous):

\[ \int _0^1\int _0^{1-u}3 (2 u+v)^2 (u+2 v)^2dvdu=\frac{47}{20} \] \[ \int _0^1\int _0^u3 (2 u+v)^2 (u+2 v)^2dvdu=\frac{77}{5} \]

ganeshie8 (ganeshie8):

oops ! somethign went wrong...

OpenStudy (anonymous):

@ganeshie8, you r first integral is the right answer.

ganeshie8 (ganeshie8):

ahh i see my mistake, thnks @eliassaab :)

OpenStudy (anonymous):

YW

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