Quay lại đáp án

	4	chỉnh		Sửa 24-04-16 04:19 PM ๖ۣۜJinღ๖ۣۜKaido 161 4
4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.=3 $( Holder)$ \Rightarrow P\leq 3 $vậy$ P_{max}=3 $tại$ x=y=z=\frac{1}{4}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.=3 $( Holder)$ \Rightarrow P\leq 3 $vậy$ P_{max}=3 $tại$ x=y=z=\frac{1}{4}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.=3 $( Holder)$ \Rightarrow P\leq 3 $vậy$ P_{max}=3 $tại$ x=y=z=\frac{1}{4}$

	3	chỉnh		Sửa 24-04-16 04:17 PM ๖ۣۜJinღ๖ۣۜKaido 161 4
4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ ( Holder) $\Rightarrow P\leq \sqrt[3]{36}$ vậy $P_{max}=\sqrt[3]{36}$ tại $x=y=z=\frac{1}{4}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ ( Holder) $\Rightarrow P\leq \sqrt[3]{36}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ ( Holder) $\Rightarrow P\leq \sqrt[3]{36}$ vậy $P_{max}=\sqrt[3]{36}$ tại $x=y=z=\frac{1}{4}$

	2	chỉnh		Sửa 24-04-16 04:06 PM ๖ۣۜJinღ๖ۣۜKaido 161 4
4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ $\Rightarrow P\leq \sqrt[3]{36}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ $\Rightarrow P\leq \sqrt[3]{36}$ 4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ $\Rightarrow P\leq \sqrt[3]{36}$

	1	tạo mới		Trả lời 24-04-16 04:05 PM ๖ۣۜJinღ๖ۣۜKaido 161 4
4) $P^3\leq (1^3+1^3+1^3)(1^3+1^3+1^3)(x+3y+y+3z+z+3x)=3.3.4=36$ $\Rightarrow P\leq \sqrt[3]{36}$

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hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
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hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
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hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
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