Kết quả tìm kiếm

sao tui ra 6 cang 6

sao ra 2\huge \dpi{50} \sqrt{12}

bạn ơi ngay khúc 3/4 là sao sao ra đc 15 vs 20 thế

oxít + H2SO4 -> muối + H2O Ta có: nH2SO4 = nH2O = 0,25.0,1 = 0,025 mol Áp dụng ĐLBTKL: mOxít + mH2SO4 = mMuối + mH2O => mMuối = 1,405 + 0,025.98 - 0,025.18 = 3,405g

Tính: \huge \dpi{50} cot67^{\circ}+sin^{2}18^{\circ}-tan23^{\circ}+cos^{2}72^{\circ}-\frac{2tan33^{\circ}}{cot57^{\circ}}

there are many ways to help protect our oceans and coast for future generations. First, I think we shouldn't litter because this makes the sea pollute and endangers sea plants and animals. Some animals can be harmed if they eat these pollutants. We should place rubbish and plastic bags in proper...

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chọn 1 trong 10 cái à ;v

The graph shows how age and gender influence the frequency of heart attacks in the US. Less than 6% of all heart attacks occur in the 29-44 age group. The number of women who suffer heart attacks in this group is negligible - only 3000 per year, compared to 123,000 men. However the proportion...

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Ai giải giúp mình với :(

hell :)

câu a) là sao thế 1 dòng à :v

Cho tam giác ABC vuông tại A có đường cao AH, đường trung tuyến AM và đường phân giác AD, biết AB=21cm, BC=35cm. a) Giai tam giác vuông ABC b) Tính độ dài AH; HC; AM; và AD

a) \huge \dpi{50} \sqrt{(3+\sqrt{11}).(\sqrt{11-3})+2} -\sqrt{7-4\sqrt{3}} b) \huge \dpi{50} \frac{2\sqrt{2}-3\sqrt{3}}{5+\sqrt{6}} +\frac{1}{\sqrt{3}+\sqrt{2}} + 3\sqrt{\frac{5}{3}} Giai rõ giùm mik nha

giải rõ hơn đc ko bạn

còn câu d) ad ơi

mình đánh đúng mà bạn

"Biến khó khăn thành động lực, Biến đam mê thành hiện thực"

a) \huge \dpi{50} 7\sqrt{\frac{25}{49}}-5\sqrt{8} -\sqrt{27}.\sqrt{3}+2\sqrt{50} + \sqrt{4} b)\huge \dpi{50} \sqrt{(3+\sqrt{8})^{2}} - 2\sqrt{(1-\sqrt{2})^{2}} c) \huge \dpi{50} \sqrt{(3+\sqrt{11)})}.(\sqrt{11-3})+2 - \sqrt{7-4\sqrt{3}} d) \huge \dpi{50} \frac{2\sqrt{2-3\sqrt{3}}}{5+\sqrt{6}} +...