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