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Evaluate $\iint_R y\,dxdy$ where 'R' is the region bounded by $y^2=4x$ & $x^2=4y$
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$ \text { The two parabola's intersect at O(0,0) and A (4,4).} \\ $

$ \text {Point of intersection : } \\ $

$ y^2 = 4x , x^2 = 4y \\ $

$ x= \frac{y^2}{4} \\ $

$ x^2 = 4y \\ $

$ \frac { y^4} {16} = …

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