Tỉ lệ thức 1. Tìm x a) x/2 = 8/x b) 3x-7/8=5/2 c) 2x-3/4=9/2x-3

mn giúp em mấy câu này với ạ e cần gấp ạ e cảm ơn mn

nguyên tố hóa học là tập hợp những nguyên tử cùng loại , có cùng số proton trong hạt nhân.Vậy nguyên tử cùng loại là cái gì?

Viết một đoạn văn ngắn về tinh thần đoàn kết của dân tộc trong giai đoạn corona hiện nay vt = tiếng anh nhé

Tìm no nguyên của pt x^4+4x^3+6x^2+4x=y^2

chứng minh √2 + √5 là số vô tỉ √2√7+1 là số vô tỉ

Tìm GTNN(min) của các biểu thức: A = | x + 3/2| B = | x - 1/2 | + 3/4

Tìm điều kiện xác định và rút gọn biểu thức : C = $\frac{1}{căn x +1}$ - $\frac{3}{x căn x +1}$ + $\frac{2}{x - căn x +1}$

$3\cos{(2x+\frac{\pi}{4})}+4\cos{(2x+\frac{3\pi}{4})} = a\cos{(bx+c)}$ Tính $a+b+\cos{2c}$.

I’d like to talk about Nguyen Khuyen private school, To me, it is perhaps the toughest but funniest high school in the entire city. Nguyen Khuyen Private school is located in Tan Binh, a busy and lively district in Ho Chi Minh city. The school offers young students ranging from primary school to high school with a full range of facilities for the best education as a boarding school. Many parents and students from both urban and rural areas have to get in line to wait for their turn to apply for the school’s summer semester. This school is always reputable for its excellent academic results as well as its strict self-regulation lessons as in the army. It dated back to when I was in grade 10 that my mother addressed me to this school. I studied there until I got my high school diploma and was ready to have my university’s entrance test. I had such a diligent period learning at this school within solid observations from my teachers. However, I have to admit that I also had fond of captivating memories while learning there. Also, the thing that appealed to me most of all was the fun time when my peers and I did some physical activities in the school yard and enjoyed our meals after a hard-working day. Once a year, we had our trip of the lifetime to somewhere off the beaten tracks together. Those memories are things that I will never forget and I always consider those as my pride in my youth.