Help me!!!Matching nha mn!!!!
iua
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Những câu hỏi liên quan
27 tháng 10 2021
\(P=\left\{13;16;19;...;97\right\}\)
Số số hạng là: (97-13):3+1=29(phần tử)
KT
3
OY
21 tháng 10 2021
\(\left(x-5\right)^5=\left(x-5\right)^6\)
\(\Rightarrow\left(x-5\right)^6-\left(x-5\right)^5=0\)
\(\Rightarrow\left(x-5\right)^5.\left(x-5-1\right)=0\)
\(\Rightarrow\left(x-5\right)^5.\left(x-6\right)=0\)
\(\Rightarrow\left\{{}\begin{matrix}\left(x-5\right)^5=0\\x-6=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=5\\x=6\end{matrix}\right.\)
TN
2
1 tháng 1 2022
\(\left(\dfrac{1}{\sqrt{a}-1}-\dfrac{1}{\sqrt{a}}\right):\left(\dfrac{\sqrt{a}+1}{\sqrt{a}-2}-\dfrac{\sqrt{a}+2}{\sqrt{a}-1}\right)\)
\(=\left(\dfrac{\sqrt{a}}{\sqrt{a}\left(\sqrt{a}-1\right)}-\dfrac{\sqrt{a}-1}{\sqrt{a}\left(\sqrt{a}-1\right)}\right):\left(\dfrac{\left(\sqrt{a}+1\right)\left(\sqrt{a}-1\right)}{\left(\sqrt{a}-2\right)\left(\sqrt{a}-1\right)}-\dfrac{\left(\sqrt{a}+2\right)\left(\sqrt{a}-2\right)}{\left(\sqrt{a}-1\right)\left(\sqrt{a}-2\right)}\right)\)
\(=\dfrac{\sqrt{a}-\sqrt{a}+1}{\sqrt{a}\left(\sqrt{a}-1\right)}:\left(\dfrac{a-1}{\left(\sqrt{a}-2\right)\left(\sqrt{a}-1\right)}-\dfrac{a-4}{\left(\sqrt{a}-1\right)\left(\sqrt{a}-2\right)}\right)\)
\(=\dfrac{1}{\sqrt{a}\left(\sqrt{a}-1\right)}:\dfrac{a-1-a+4}{\left(\sqrt{a}-2\right)\left(\sqrt{a}-1\right)}\)
\(=\dfrac{1}{\sqrt{a}\left(\sqrt{a}-1\right)}:\dfrac{3}{\left(\sqrt{a}-2\right)\left(\sqrt{a}-1\right)}\)
\(=\dfrac{1}{\sqrt{a}\left(\sqrt{a}-1\right)}.\dfrac{\left(\sqrt{a}-2\right)\left(\sqrt{a}-1\right)}{3}\)
\(=\dfrac{\sqrt{a}-2}{3\sqrt{a}}\)
NB
làm giúp tui nha ai làm đúng tui cho vào team nhanh nha 😭
3
LL
1
TD
30 tháng 5 2018
I had a trip to Da Lat with my classmates in three days last year on the summeroccasion. The trip was started at 9 am, we travelled by plane. I felt so happy becauseI believed that I would have a good time with my friends. We arrived in Da Lat at 11 am.We had lunch, and then prepared for the camp-fire at night. In the afternoon,we climbed the Langbiang mountain and took many pictures. We stood in a circle-around the camp-fire, and had a lot of activities with ethnic minority people such as:performing dances, singing, drinking wine, etc.The second day, we visited the church. We took some pictures together andbought some souvenirs. In the last day, we came to the Golden Valley. At the end of the trip, we felt this place was wonderful and exciting and had lots of beautiful scenery and wonderful natural scenery. After the trip I learned that there are many places to explore and enjoy life better because life is very short so people have to thoroughly enjoy not to waste life. (Ai có quan điểm về bài học rút ra khác thì trả lời bên dưới nha ^.^)
LN
3
ko giúp thì thôi có cần đối xử như vậy ko Nguyễn Hải Dương
NI
9 tháng 11 2017
Van Tu , Thuong Tin , Ha Noi
November 9 , 2017
Dear Donna ,
Thanks for your letter . I'm pleased to hear you had a great time on Mother 's Day .
We received our second semester report last month . I got good grades for Geography , Physics and Math . But my teacher told me to improve English and History .
In a few days , the Mid-Autumn Festival is coming or call it the moon festival . I'm going to Ha Long Bay with my aunt and uncle by bus this afternoon . I'll send you a postcard from there .
Write soon and tell me all your news .
Your friends ,
Lan .
1e, 2a, 3c, 4d, 5b
ah Trịnh Đức Minh giúp e vs !!!!!\
Nguyễn Anh Duy
Phương An
Hoàng Lê Bảo Ngọc giúp e vs mn ơy
