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Diberikan $\\displaystyle \\iint_R ye^{-xy}\\, dA = \\dfrac{1}{\\simplify{{a}*exp({a})}}$ untuk $R=\\{(x,y)\\mid 0\\leq x\\leq a,\\, 0\\leq y \\leq 1\\}$.

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Maka nilai $a=\\ldots$.

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Diberikan integral lipat $\\displaystyle \\iint_D (\\var{a^2}-x^2-y^2)\\, dA$.

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Daerah $D$ agar hasil integralnya negatif adalah $\\ldots$.

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Diketahui $\\displaystyle \\int_0^1 \\int_{\\var{a}x}^{\\var{a}}e^{-x^2}\\, dx\\, dy = \\dfrac{1-e^a}{b}$.

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Nilai dari $a+b=\\ldots$.

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Pilihlah seluruh integral yang bernilai sama dengan jumlahan integral

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$\\displaystyle \\int_{1/\\sqrt{2}}^1 (x^2+y^2)\\, dy\\, dx + \\int_1^{\\sqrt{2}}\\int_0^x (x^2+y^2)\\, dy\\, dx +\\int_{\\sqrt{2}}^{2}\\int_{\\sqrt{4-x^2}}^{x} (x^2+y^2)\\, dy\\, dx.$

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  1. $\\displaystyle \\int_0^{\\pi/4} \\int_1^2 r^3\\, dr\\, d\\theta$.
  2. \n
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Lamina $D$ berada di atas sumbu-$y$ dan dibatasi oleh kurva $y=\\sqrt{1-x^2}$ dan $y=\\sqrt{{\\var{a^2}}-x^2}$. Diketahui kepadatan massa lamina tersebut adalah $\\delta(r,\\theta) = \\dfrac{k}{r}$ dengan $k$ suatu konstanta. Misal pusat massa lamina tersebut adalah $(\\bar x,\\bar y)$.

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Jika massa lamina tersebut adalah $m=\\var{(a-1)*b}\\pi$, maka $k=\\ldots$.

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Momen lamina tersebut terhadap sumbu-$x$ adalah $\\ldots$.

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$\\bar x + \\bar y=\\dfrac{c}{\\pi}$ dengan $c=\\ldots$.

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Waktunya 5 menit lagi ya.

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Selamat datang!

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Silakan gunakan set soal ini dengan bijak. Kalian bisa mencoba set soal ini terus-menerus.

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Set soal ini dapat digunakan oleh siapapun secara gratis.

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Petunjuk pengerjaan soal:

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Jika ada kunci jawaban yang salah, kalian dapat memberitahu kami di Instagram @meongmeongproject atau OA Line @eog7710d.

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