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)
so sanh cac so sau(khong dung may tinh)
a) 15 va \(\sqrt{235}\)
so sanh x va y biet
a) x=\(2\sqrt{7}\)va y=\(3\sqrt{3}\)
b) x=\(6\sqrt{2}\)va y=\(5\sqrt{3}\)
c) x=\(\sqrt{31}-\sqrt{33}\) va y=\(6-\sqrt{11}\)
bai 4 so sanh cac so thuc
\(\frac{4}{9}va\)0,4(5)
\(\sqrt[2]{3}va\sqrt[3]{2}\)
\(\)SO SÁNH
a) 15 và \(\sqrt{235}\)
b) \(\sqrt{7}\)+ \(\sqrt{15}\)và 7
so sanh
\(\sqrt{125}\)va 15
1. So sánh
a) \(4+\sqrt{33}va\sqrt{29}+\sqrt{14}\)
b) \(\sqrt{23}+\sqrt{15}va\sqrt{91}\)
So sanh a va b :
a=\(\sqrt{50+2}\)
b=\(\sqrt{50}+\sqrt{2}\)
tinh va so sanh:
a:\(\sqrt{9\cdot4}\)va \(\sqrt{9}\cdot\sqrt{4}\)
b:\(\sqrt{169-144}\)va \(\sqrt{169}-\sqrt{144}\)