Các câu hỏi tương tự
Tìm giá trị nhỏ nhất, lớn nhất :
a) A = {eq \x\le\ri(x+1)} - 2
b) B= 3-{eq \x\le\ri(x=2/5)}
c) C= 0.5+{eq \x\le\ri(-5/4)} - {eq \x\le\ri(x-2)}
d) D= 24 - 4 . {eq \x\le\ri(1-24x)}
{eq/x/le/ri(1/2-1/3+x)}=-1/4- {eq/x/le/ri(y)}
Tìm số nguyên x biết: a) \(-4\frac{3}{5}.2\frac{4}{23}\le x\le-2\frac{3}{5}:1\frac{6}{15}\)
b) \(-4\frac{1}{3}.\left(\frac{1}{2}-\frac{1}{6}\right)\le x\le-\frac{2}{3}\left(\frac{1}{3}-\frac{1}{2}-\frac{3}{4}\right)\)
1.Tìm x
a, \(-\frac{23}{5}.\frac{50}{23}\le x\le-\frac{13}{5}:\frac{23}{17}\)
b,\(-4\frac{1}{3}.\left(\frac{1}{2}-\frac{1}{6}\right)\le x\le-\frac{2}{3}\left(\frac{1}{3}-\frac{1}{2}-\frac{3}{4}\right)\)
c,\(\frac{x-1}{2014}+\frac{x-2}{2013}=\frac{x-3}{2012}+\frac{x-4}{2011}\)
Tìm số nguyên x biết:
a) \(-4\frac{3}{5}.2\frac{4}{23}\le x\le-2\frac{3}{5}:1\frac{6}{15}\)
b) \(-4\frac{1}{3}.\left(\frac{1}{2}-\frac{1}{6}\right)\le x\le-\frac{2}{3}\left(\frac{1}{3}-\frac{1}{2}-\frac{3}{4}\right)\)
\(a,-\frac{4}{7}-x=\frac{3}{5}-2x\)
\(b,\frac{1}{2}-\left(\frac{1}{3}+\frac{3}{4}\right)\le x\le\frac{1}{24}-\left(\frac{1}{8}-\frac{1}{3}\right)\)
a) Tìm số nguyên dương x biết \(3.3^2.3^3.3^4...3^x\)=\(\left(3^3\right)^{12}\)
b) So sánh A= \(\frac{1}{5^1}+\frac{1}{5^2}+\frac{1}{5^3}+...+\frac{1}{5^{2017}}\)với \(\frac{1}{4}\)
e)\(\frac{22}{15}-x=\frac{-8}{27}\)
g)\(\left(\frac{2x}{5}-1\right):\left(-5\right)=\frac{1}{4}\)
h)\(-2\frac{1}{4}x+9\frac{1}{4}=20\)
i)\(-4\frac{3}{5}\cdot2\frac{4}{23}\le x\le-2\frac{3}{5}:1\frac{6}{15}\left(x\in z\right)\)
1. So sánh:a. 1 và frac{1}{2}+frac{1}{2^2}+frac{1}{2^3}+.....+frac{1}{2^{50}}b. frac{1}{3}+frac{1}{3^2}+frac{1}{3^3}+.....+frac{1}{3^{100}}với frac{1}{2}c. frac{1}{4}+frac{1}{4^2}+frac{1}{4^6}+.....frac{1}{4^{1000}}với frac{1}{3}2. Tìm x, biết:a.left(frac{2}{5}-xright):1frac{1}{3}+frac{1}{2}-4b.3-frac{1-frac{1}{2}}{1+frac{1}{x}}2frac{2}{3}c.4^x+4^{x+3}4160d.2^{x-1}+5.2^{x-2}frac{7}{32}e.frac{x-100}{24}+frac{x-98}{26}+frac{x-96}{24}3g.frac{x-1}{65}+frac{x-3}{63}+frac{x-5}{61}+frac{x-7}{59}
Đọc tiếp
1. So sánh:
a. 1 và \(\frac{1}{2}+\frac{1}{2^2}+\frac{1}{2^3}+.....+\frac{1}{2^{50}}\)
b. \(\frac{1}{3}+\frac{1}{3^2}+\frac{1}{3^3}+.....+\frac{1}{3^{100}}\)với \(\frac{1}{2}\)
c. \(\frac{1}{4}+\frac{1}{4^2}+\frac{1}{4^6}+.....\frac{1}{4^{1000}}\)với \(\frac{1}{3}\)
2. Tìm x, biết:
a.\(\left(\frac{2}{5}-x\right):1\frac{1}{3}+\frac{1}{2}=-4\)
b.\(3-\frac{1-\frac{1}{2}}{1+\frac{1}{x}}=2\frac{2}{3}\)
c.\(4^x+4^{x+3}=4160\)
d.\(2^{x-1}+5.2^{x-2}=\frac{7}{32}\)
e.\(\frac{x-100}{24}+\frac{x-98}{26}+\frac{x-96}{24}=3\)
g.\(\frac{x-1}{65}+\frac{x-3}{63}+=\frac{x-5}{61}+\frac{x-7}{59}\)