Mấy bạn giúp mik nhak !!! HELP ME
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26 tháng 6 2016
\(\frac{\left(3.4.2^{16}\right)^2}{11.2^{13}.4^{11}-16^9}\)\(=\frac{3^2.4^2.2^{32}}{11.2^{12}.2^{22}-2^{36}}\)\(=\frac{3^2.2^4.2^{32}}{11.2^{34}-2^{34}.2^2}\)\(=\frac{3^2.2^{34}.2^2}{2^{34}.\left(11-2^2\right)}\)\(=\frac{2^{34}.36}{2^{34}.7}=\frac{36}{7}\)
KU
1
KU
1
HA
25 tháng 12 2016
Reading books :
I'm very happy to introduce somethings about the activity I do in my free time. I often read books in my free time. I started reading books when I was at the age of six. You know that, I have known how to read books. I read whatever I saw and whenever I had free time. I often went to library or bookshop to find some interesting books and I bought it. Now, I have a large colection of books. I often find out the most interesting of the books give us and share to my sister. I found it very useful. I love reading books a lot and I hope, I will keep doing this activity in the future.
25 tháng 12 2016
There are three activities I like to do in my free time. The first is cartoon. I like watch cartoons very much. I love “Total Spies” most because it is very exciting and funny. I often watch it with my friends to relax. Second, I also play football with my brother and my friends when I have free time. I often play it in our school yard. I think playing football is sport which helps us have good health and study better. Final, I like reading books best. Since reading books are good, you can learn about another culture and again your knowledge. Moreover, it is a form of entertainment, which is useful to our life. All in all, I find that if I haven’t anything to do in my free time, I will be boring. Therefore, you should also choose some activities for yourself to do, which helps you have healthy way of life.
AY
3 tháng 7 2016
\(1991+1992+...+1998.\)
Tận cùng là chữ số 5 .
\(11+12+...+18+19\)
Tận cùng là chữ số 5.
mik nha !!!
NT
3 tháng 7 2016
1991+1992+...+1998 tận cùng là chữ số 6
11+12+...+18+19 tận cung là chữ số 5
Các bạn giúp đỡ mình mấy câu này càng nhanh càng tốt nhé help me
25 tháng 1 2016
50 , 61 , 72 , 83 , 94
nguyễn hương ly nhớ tick mình nha
cho mình hỏi phần b bài 1 chỗ:x2.y2 phải ko mình nhìn ko rõ.
nhìu wa pn ạ