Tìm x, biết\)
cấp cứu gấp giải xong b , c, d là đc 5k xu
----- Nội dung ảnh -----
BTVN. Tìm x, biết:
a) \(|x + \frac{1}{2021}| + |x + \frac{2}{2021}| + |x + \frac{3}{2021}| + \ldots + |x + \frac{2020}{2021}| = 2021x\)
b) \(|x + \frac{1}{1.2}| + |x + \frac{1}{2.3}| + |x + \frac{1}{3.4}| + \ldots + |x + \frac{1}{2019.2020}| = 2020x\)
c) \(|x + \frac{1}{1.3}| + |x + \frac{1}{3.5}| + |x + \frac{1}{5.7}| + \ldots + |x + \frac{1}{197.199}| = 100x;\)
d) \(|x + \frac{1}{2}| + |x + \frac{1}{6}| + |x + \frac{1}{12}| + \ldots + |x + \frac{1}{20}| + |x + \frac{1}{110}| = 11x.\)
----- Nội dung ảnh -----
BTVN. Tìm x, biết:
a) \(|x + \frac{1}{2021}| + |x + \frac{2}{2021}| + |x + \frac{3}{2021}| + \ldots + |x + \frac{2020}{2021}| = 2021x\)
b) \(|x + \frac{1}{1.2}| + |x + \frac{1}{2.3}| + |x + \frac{1}{3.4}| + \ldots + |x + \frac{1}{2019.2020}| = 2020x\)
c) \(|x + \frac{1}{1.3}| + |x + \frac{1}{3.5}| + |x + \frac{1}{5.7}| + \ldots + |x + \frac{1}{197.199}| = 100x;\)
d) \(|x + \frac{1}{2}| + |x + \frac{1}{6}| + |x + \frac{1}{12}| + \ldots + |x + \frac{1}{20}| + |x + \frac{1}{110}| = 11x.\)