Giúp mình với: với hai biểu thức,a.a.a.b.b.b
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NN
8
15 tháng 10 2021
a = 32 và b = 20
a = 32 và b = 20 thì a – b = 32 – 20
= 12
16 tháng 4 2020
\(\frac{a}{b}\)+\(\frac{b}{a}\)(a,b\(\in\)Z ; b\(\ne\)0)
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NV
Nguyễn Việt Lâm
Giáo viên
26 tháng 7 2021
Câu này em đã hỏi rồi
1.Tìm GTNN của Bthức : B= 4x2- 6x+1 : (x-2)2 với x ≠ 22. Tìm GTLN của Bthức: C= x2 + 4x - 14 : x2 -2x +1 với x≠ 1gi... - Hoc24
M
0
17 tháng 9 2021
1) \(\sqrt{x+2}\) có nghĩa khi \(x\ge-2\)
2) Chọn D do \(x^2+x+1=\left(x+\dfrac{1}{2}\right)^2+\dfrac{3}{4}\ge\dfrac{3}{4}>0\)
3) \(2x-3>0\Leftrightarrow x>\dfrac{3}{2}\)=> Chọn C
hong biet gi het
TL:
Câu hỏi là gì vậy ?