Các câu hỏi tương tự
bai 1 : tinh
\(\sqrt{49}\); \(\sqrt{-49}\) ; \(\sqrt{0,01}\)
bai 2 : so sanh
a,15 va \(\sqrt{235}\)
b,\(\sqrt{7}\)+ \(\sqrt{15}\)va 7
bai 3 ; tinh hop ly
A = 7,3.10,5-7,3.15+2,7.10,5-15.2,7
bai 4 : so sanh
a, 1,(05) va 0,(31)
b, 3,0(21) va 3,021
c,0,001 va 0,(001)
d,1,(31) va 1,(313)
\(0,5\sqrt{100}-\sqrt[]{\frac{4}{25}}va\left(\sqrt{\frac{10}{9}}-\sqrt{\frac{9}{16}}\right):5\)
so sanh
so sanh cac so huu ti sau:
a.x=-3/5 va y=2/-3
b.x=35/84 va y=8/15
c.x=-5/4 va y=-3/8
d.x=-3/100 va y=2/3
e.x=8/9 va y=19/18
f.x=1250/1251 va y=25/24
so sanh cac so huu ti sau x,y thuoc Q:
a.x=-5/4 va y=-3/8
b.x=-3/100 va y=2/3
c.x=8/9 va y=19/18
d.x=1250/1251 va y=25/24
viet cac so huu ti sau duoi dang cac phan socung mau duong
a,\(\frac{4}{̣̣̣̣̣̣9}va\frac{3}{7}\)
b \(\frac{-2}{3}va\frac{-4}{5}\)
c\(\frac{1}{-5}\)va 1
bai 1: Cho cac don thuc A=-4/9x^3y va B= 3/8 x^5y^3. Tim cac cap gia tri (x;y)de A,B cung gia tri am
bai 2: viet don thuc B=64xy^12 duoi dang luy thua cua 1 don thuc voi so mu khac 1
bai 3: cho A=8x^5y^3; B=-3x^6y^3; C=-6x^7y^2. CM: Ax^2+Bx+C>0
tinh va so sanh:
a:\(\sqrt{9\cdot4}\)va \(\sqrt{9}\cdot\sqrt{4}\)
b:\(\sqrt{169-144}\)va \(\sqrt{169}-\sqrt{144}\)
Bai 1 so sanh cac so sau :
2^0+2^1+2^2+2^3+......+2^50 va 2^51
Neu ai gia dc bai toan nay thi tui se tich cho
so sanh
a) 2^90 va 5^36
b) 99^200 va 9999^100
c) 2^150 va 3^100
d) \(\sqrt{26+2}\) va \(\sqrt{26}\)+ \(\sqrt{2}\)