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    Mat 2B - UAS - No 4

    Question 1

    Nilai maksimum dari fungsi f(x,y)=xy4 pada lingkaran x2+y2=9 adalah ….

    Petunjuk: Suatu persamaan parametrik untuk lingkaran x2+y2=r2 adalah x(t)=rcos(t), y(t)=rsin(t), t∈[0,2π].

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