Đáp án: Rút gọn B=(2/x+y) √((3(x+y)^(2)/4)) với x+y>0; - B=2/(x+y)√((3(x+y)^2)/4)(x+y>0) =2/(x+y)√(3(x+y)^2)/sqrt(4) =2/(x+y)(√(3)∣x+y∣)/2 =2/(x+y)(√(3)(x+y))/2 =√3

B=2/(x+y)√((3(x+y)^2)/4)(x+y>0) =2/(x+y)√(3(x+y)^2)/sqrt(4) =2/(x+y)(√(3)∣x+y∣)/2 =2/(x+y)(√(3)(x+y))/2 =√3

Đáp án + Giải thích các bước giải B = (2/x + y)√((3(x + y)^2/4)) B = (2/x + y) (√(3)(x + y)/2) B = (√(3)(x + y)/x + y) B = √(3)

legendaryst

4 tháng trước

Rút gọn $B=\dfrac{2}{x+y} \sqrt{\dfrac{3(x+y)^{2}}{4}}$ với $x+y>0$;

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Huy Dương

4 tháng trước

`B=2/(x+y)\sqrt((3(x+y)^2)/4)(x+y>0)`

`=2/(x+y).\sqrt(3(x+y)^2)/sqrt(4)`

`=2/(x+y).(\sqrt(3)|x+y|)/2`

`=2/(x+y).(\sqrt(3)(x+y))/2`

`=\sqrt3`

Minh Hieu

4 tháng trước

Đáp án + Giải thích các bước giải:

$B = \dfrac{2}{x + y}\sqrt{\dfrac{3(x + y)^2}{4}}$

$B = \dfrac{2}{x + y} . \dfrac{\sqrt{3}(x + y)}{2}$

$B = \dfrac{\sqrt{3}(x + y)}{x + y}$

$B = \sqrt{3}$

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Rút gọn $B=\dfrac{2}{x+y} \sqrt{\dfrac{3(x+y)^{2}}{4}}$ với $x+y>0$;

2 câu trả lời

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việt nam dành độc lập vào năm nào

Choose the best answer.I think you should buy _____ pack of mineral water instead. And you can also buy _____ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______ cookies and soft candies.

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I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

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