ai giup minh giai bai nay voi:
x-1/x-3 >1
cam on nhiu:)))
day la chuyen muc giai toan nhung cac cau giup to giai bai van nay vs nhe cam on cac nhiu
tu cac so sau 0,1,2,3,4,5,6,7.
hay viet mot doan van tu cac so tren
ai giai minh tik cho
7 ngay 6 dem khach san 5 sao tang 4 phing 3 2 nguoi 1 giuong o quan o ao
7 ngay 6 lan 5 gio 4 phut nga 3 ,2 thang 1 chai o say o ve
giai phuong trinh (x-1)^2016+(x-2)^2016=1
cac ban lam giup bai nay cho minh vs. minh dang can gap. thank you nhiu
cam on ban nha. ban hoc truong nao vay?
giup to giai bai toan nay vs, mai to thi roi
cho a-b+c/c=b+c-a/a=a+b+c/b
tinh a+b+c/abc
ai giai giup minh vs , thanks ai giai cho minh nhiu, minh k cho ha
Em ơi câu trả lời 74 m/phút .
( x + 2 ) . ( x - 4 ) = 0
Ai giai giup minh bai nay voii a.
(\(x\) + 2).(\(x\) - 4) = 0
\(\left[{}\begin{matrix}x+2=0\\x-4=0\end{matrix}\right.\)
\(\left[{}\begin{matrix}x=-2\\x=4\end{matrix}\right.\)
Vậy \(x\) \(\in\) {-2; 4}
TH1: x + 2 = 0
x = 0 - 2
x = -2
TH2: x - 4 = 0
x = 0 - 4
x = -4
Vậy ...
Chúc bạn học tốt nhé
Ai giai giup minh bai nay voi
A=1+1/2(1+2)+1/3(1+2+3)+......+1/2011(1+2+3+.....+2011)
\(A=1+\frac{1}{2}\left(1+2\right)+\frac{1}{3}\left(1+2+3\right)+...+\frac{1}{2011}\left(1+2+3+...+2011\right)\)
\(=1+\frac{1}{2}\cdot\frac{2.3}{2}+\frac{1}{3}\cdot\frac{3.4}{2}+...+\frac{1}{2011}\cdot\frac{2011.2012}{2}\)
\(=\frac{2}{2}+\frac{3}{2}+\frac{4}{2}+...+\frac{2012}{2}\)
\(=\frac{2+3+4+...+2012}{2}\)
\(=\frac{\frac{2012\cdot2013}{2}-1}{2}=\frac{2025077}{2}\)
Rut gon bieu thuc A =\(\frac{x+5-5\sqrt{x-1}}{x-1-3\sqrt{x-1}}\)
Giup minh giai bai nay voi .
Cam on
\(A=\frac{\left(x-1\right)-5\sqrt{x-1}+6}{\sqrt{x-1}\cdot\left(\sqrt{x-1}-3\right)}=\frac{\left(\sqrt{x-1}-2\right)\cdot\left(\sqrt{x-1}-3\right)}{\sqrt{x-1}\cdot\left(\sqrt{x-1}-3\right)}\) Đk x\(\ne\) 1;10
\(A=\frac{\sqrt{x-1}-2}{\sqrt{x-1}}=1-\frac{2}{\sqrt{x-1}}\)
cac ban oi giai cho mik bai nay zoi
2x+4x+6x+...+100x=50x100
cam on cac ban nhiu lam
a quen de bai la tim x nhe
\(2x+4x+6x+...+100x=50.100\)
\(\left(2+4+6+...+100\right)x=5000\)
\(\left\{\left(100+2\right)\left[\left(100-2\right):2+1\right]:2\right\}x=5000\)
\(\left(102.50:2\right)x=5000\)
\(2550x=5000\)
\(x=5000:2550\)
\(x=\dfrac{100}{51}\)
Số số hạng là (100-2)/2+1=50(số)
Tổng là: (100+2)*50/2=102*50/2=50*51=2550
Theo đề, ta có: 2550x=50*100=5000
=>x=5000/2550=100/51
mn giup minh nhe
cam on cac ban da giup giai bai toan nay
Chung minh vo nghiem
sqrt(10-x^2)=x-4
Giai giup em bai nay voi oi nguoi. E cam on