Nói cho mik bt GTLN và GTNN là gì đã rùi mik giải cho
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Tìm GTLN hoặc GTNN của :
a) \(A=\left|-x+8\right|-21\)
b) \(B=\left|-x-17\right|+\left|y-36\right|+12\)
c) \(C=-\left|2x-8\right|-35\)
d) \(D=3\left(3x-12\right)^2-37\)
e) \(E=-21-3\left|2x+50\right|\)
g) \(G=\left(x-3\right)^2+\left|x^2-9\right|+25\)
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) \(E=\left|x+2\right|-\left|x-y+1\right|^{2018}-2,7\)
Tính GTLN hoặc GTNN và phân biệt đâu là GTLN và GTLN:
a) \(A=4-\left(x+1\right)^{2018}\)
b) \(B=\left(x-3\right)^2-2017\)
c) \(C=\dfrac{4}{\left(x+1\right)^2+2}\)
d) \(D=\left(2x-y+1\right)^{2018}+\left|y+1\right|+2017\)
Bài 1: Tính:
Aleft(-2right).left(-3right)-5.left|-5right|+125.left(dfrac{-1}{5}right)^2
Bleft(-3right).left|-7right|-left(-4right).left|5right|+dfrac{1}{3}.left|-9right|
Cleft(-2right)^3.left|-3right|-dfrac{1}{5}.left|-25right|-4.left|-7right|+left(-2right)^2
Dleft(-6right).left|-3right|+2.left|-9right|-7left|left(-2right)^3right|+8.left|-7right|
Eleft|-3^2right|.left|4right|-left|7right|.8-left|6right|.left|-8right|-left|12right|.left(dfrac{1}{2}right)^2
Bài 2: Tìm x:
a)12-2left|3x+2rig...
Đọc tiếp
Bài 1: Tính:
A=\(\left(-2\right).\left(-3\right)-5.\left|-5\right|+125.\left(\dfrac{-1}{5}\right)^2\)
B=\(\left(-3\right).\left|-7\right|-\left(-4\right).\left|5\right|+\dfrac{1}{3}.\left|-9\right|\)
C=\(\left(-2\right)^3.\left|-3\right|-\dfrac{1}{5}.\left|-25\right|-4.\left|-7\right|+\left(-2\right)^2\)
D=\(\left(-6\right).\left|-3\right|+2.\left|-9\right|-7\left|\left(-2\right)^3\right|+8.\left|-7\right|\)
E=\(\left|-3^2\right|.\left|4\right|-\left|7\right|.8-\left|6\right|.\left|-8\right|-\left|12\right|.\left(\dfrac{1}{2}\right)^2\)
Bài 2: Tìm x:
a)\(12-2\left|3x+2\right|=10\)
b)\(2.\left|5-4x\right|+17=\left(-2\right)^3.\left(-4\right)\)
c)\(\left|3x-5\right|+\left(-3\right)^2.2=12.\left|3x+5\right|+117\)
d)\(4.\left|3-2x\right|+\left(-5\right).\left|4-3x\right|-5=-6\)
e)\(\left|2x-7\right|-2^3.\left|2x-7\right|+15=-5.\left|2x-7\right|+3\)
f)\(\left|x+2\right|+\left|x^2-4\right|=0\)
g)\(\left|3x-9\right|+\left|x^2-9\right|=0\)
h)\(\left|2x-1\right|+\left|x^2-\dfrac{1}{4}\right|=0\)
Tìm số nguyên x
1/ 17x+3left(-16x-37right)2x+43-4x
2/ -2x-3left(x-17right)34-2left(-x+25right)
3/ left{-3x+2left[45-x-3left(3x+7right)-2xright]+4xright}55-103-57:left[-2left(2x-1right)^2-left(-9right)^0right]-106
4/ -2x+3left{12-2left[3x-left(20+2xright)-4xright]+1right}45
5/ 3x-32-5+1
6/ 15+4x 2x-145
7/ -3left(2x+5right)-16 -4left(3-2xright)
8/ -2x+15 3x-7 19-x
Đọc tiếp
Tìm số nguyên x
1/ \(17x+3\left(-16x-37\right)=2x+43-4x\)
2/ \(-2x-3\left(x-17\right)=34-2\left(-x+25\right)\)
3/ \(\left\{-3x+2\left[45-x-3\left(3x+7\right)-2x\right]+4x\right\}=55-103-57:\left[-2\left(2x-1\right)^2-\left(-9\right)^0\right]=-106\)
4/ \(-2x+3\left\{12-2\left[3x-\left(20+2x\right)-4x\right]+1\right\}=45\)
5/ \(3x-32>-5+1\)
6/ \(15+4x< 2x-145\)
7/ \(-3\left(2x+5\right)-16< -4\left(3-2x\right)\)
8/ \(-2x+15< 3x-7< 19-x\)
tìm x biết :
a) \(\left(x+\frac{1}{5}\right)^2+\frac{17}{25}=\frac{26}{25}\)
b) \(-1\frac{5}{27}-\left(3x-\frac{7}{9}\right)^3=-\frac{24}{27}\)
c) \(\left(x+\frac{1}{2}\right).\left(\frac{2}{3}-2x\right)=0\)
1: Tìm GTNN
A = |x - 2| + |x + y - 5| + 3
2: Tìm GTLN
\(\dfrac{10}{2+\left|x+3\right|+\left|y+7\right|}\)
Tìm Min của: a)B=\(\left|3x-7\right|-\left|3x+2\right|+8\)
b)C=\(\left|X+2\right|+\left|2X+5\right|+\left|X-3\right|\)
Tìm gúa trị NN của mỗi biểu thức sau
a, A=\(\left|x-2\right|+\left|x-3\right|\)
b,B=\(\left|x-1\right|-2\)
c, C=\(\left|x-3\right|+\left|x-4\right|\)
d, D=\(\left|x-1\right|+\left|x+5\right|+2\)