Ôn tập toán 6
Các câu hỏi tương tự
Tìm GTNN hoặc GTLN:
a) A3,5+left|X-2017right|-9
b) Bleft|-2,5-3right|-left|x+1,5right|
c) Cleft|x+1,5right|-7,5+left|y-3,2right|
d) D-left|2x-xright|-left|4-yright|+9,5
e) Eleft|x+2right|+left|x-y+1right|^{2018}-2,7
f) Eleft|x+2right|-left|x-y+1right|^{2018}-2,7
Đọc tiếp
Tìm GTNN hoặc GTLN:
a) \(A=3,5+\left|X-2017\right|-9\)
b) \(B=\left|-2,5-3\right|-\left|x+1,5\right|\)
c) \(C=\left|x+1,5\right|-7,5+\left|y-3,2\right|\)
d) \(D=-\left|2x-x\right|-\left|4-y\right|+9,5\)
e) \(E=\left|x+2\right|+\left|x-y+1\right|^{2018}-2,7\)
f) \(E=\left|x+2\right|-\left|x-y+1\right|^{2018}-2,7\)
\(A=1+\frac{1}{2}\left(1+2\right)+\frac{1}{3}\left(1+2+3\right)+\frac{1}{4}\left(1+2+3+4\right)+...+\frac{1}{16}\left(1+2+..+16\right)\)
Tính:
\(M=\frac{\left(1+17\right)\left(1+\frac{17}{2}\right)\left(1+\frac{17}{3}\right)........\left(1+\frac{17}{19}\right)}{\left(1+19\right)\left(1+\frac{19}{2}\right)\left(1+\frac{19}{3}\right)........\left(1+\frac{19}{17}\right)}\)
Tính: \(A=1+\frac{1}{2}\left(1+2\right)+\frac{1}{3}\left(1+2+3\right)+\frac{1}{4}\left(1+2+3+4\right)+...+\frac{1}{16}\left(1+2+3+...+16\right)\)
Thực hiện tính :
E = \(1+\frac{1}{2}\left(1+2\right)+\frac{1}{3}\left(1+2+3\right)+\frac{1}{4}\left(1+2+3+4\right)+...+\frac{1}{200}\left(1+2+...+200\right)\)
Tìm x,y,z biết:
\(\left|x-\frac{1}{2}\right|+\left|y+\frac{3}{2}\right|+\left|x+y-z-\frac{1}{2}\right|=0\)
bài 1 : Tìm x :
1. \(\left(81-x^2\right).\left(-2x-16\right).\left(-3x+15\right)=0\)
bài 2: Tìm x,y thuộc Z
1, \(\left(2x-1\right).\left(4y+2\right)=-42\)
2,\(\left(5x+1\right).\left(y-1\right)=4\)
Tìm x, y ϵ Z biết :
a) \(\left|x-1\right|+\left|y-2\right|=1\)
b) \(\left|x+3\right|+\left|y\right|=0\)
c) \(\left|1-x\right|+\left|y+2\right|=2\)
Bài 1 Tìm Max
a) A = \(\frac{21\left|4x+6\right|+33}{3\left|4x+6\right|+5}\)
b) B = \(\frac{15\left|x+1\right|+32}{6\left|x+1\right|+8}\)
c) C = \(\frac{6\left|y+5\right|+14}{2\left|y+5\right|+14}\)