3270 nha em, k đi rồi chj k lại

Kết quả là: 3270

111 + 333 + 555 +777 + 999 + 11 +22 +33 +44 +55 + 66 + 77 + 88 + 99 = 3270

55⁶⁶>66⁵⁵

55⁶⁶>66⁵⁵. like ik ha.^-^

Ta có:    55^66 = (55^6)^11 = ((11.5)^6)^11 = (11^6.5^6)^11 = (11^5.11.5^6)^11

              66^55 = (66^5)^11 = ((11.6)^5)^11 = (11^5.6^5)^11

Vì 11.5^6 > 6^5 nên 55^66 > 66^55

=3/7+2/5=15/35+14/35=29/35

=3/7+2/5=15/35+14/35=29/35

Ta có :

\(\xrightarrow[34^{18}>32^{18}=\left(2^5\right)^{18}=290]{63^{15}< 64^{15}=\left(2^6\right)^{15}=2^{90}}\Rightarrow63^{15}< 54^{18}\)

a)

Ta có:

\(63^{15}< 64^{15}\Rightarrow63^{15}< \left(2^5\right)^{15}\Rightarrow63^{15}< 2^{90}\)

\(34^{18}>32^{18}\Rightarrow34^{18}>\left(2^5\right)^{18}\Rightarrow34^{18}>2^{90}\)

\(\Leftrightarrow34^{18}>63^{15}\)

b)

\(55^{66}=\left(55^6\right)^{11}=330^{11}\)

\(66^{55}=\left(66^5\right)^{11}=330^{11}\)

\(\Leftrightarrow55^{66}=66^{55}\)

55⁶⁶>66⁵⁵

https://olm.vn/hoi-dap/question/62924.html

vào đây xem nhé

có 55⁶⁶=(55⁶)¹¹=27680640625¹¹

      66⁵⁵=(66⁵)¹¹=1252332576¹¹

vì 27680640625>1252332576 =>55⁶⁶>66⁵⁵

5+55+555+5555/7+77+777+7777

= 10039.5714286

Học tốt !!! Chúc bn luôn may mắn !!!

Mình mong bn hãy !!!

Thanks !!!

Ta có \(\frac{5+55+555+5555}{7+77+777+7777}\)

\(=\frac{5.\left(1+11+111+1111\right)}{7.\left(1+11+111+1111\right)}\)

\(=\frac{5}{7}\)

Vậy \(\frac{5+55+555+5555}{7+77+777+7777}=\frac{5}{7}\)

thank you very much

\(=\frac{5}{7}\)

Cho mk xin cái li ke

a, = 5x1+5x11+5x111+5x1111

=5 x (1+11+111+1111)

=5 x 1234

=6170

b, giống câu trên.

\(\frac{5.\left(1+11+111+1111\right)}{7.\left(1+11+111+1111\right)}=\frac{5}{7}\)

k cho mik nha

=\(55^{6x11}và66^{5x11}\)

=\(330^{11}va330^{11}\)

=>\(55^{66}=66^{55}\)

55 + 55 - 22 + 66

= 110 - 22 + 66

= 88 + 66

= 154

55 + 55 - 22 + 66 = 154

k nhé

= 154 nhé

hok tốt