Ai giúp mình đi, Ngày mai mình thi câu này rồi mà k hiểu
Bài này ngày mai mình thi mà mình k hiểu, ai giúp mình đi
a: Xét ΔADB và ΔADC có
AD chung
DB=DC
AB=AC
Do đó: ΔADB=ΔADC
b: Ta có: ΔABC cân tại A
mà AD là đường trung tuyến
nên AD là phân giác
c: Xét ΔAED vuông tại E và ΔAFD vuông tại F có
AD chung
\(\widehat{EAD}=\widehat{FAD}\)
Do đó: ΔAED=ΔAFD
Suy ra: DE=DF
Ai giải bài này giùm mình đi ngày mai mình thi rồi
\(A\left(x\right)=4x^3-4x^2+x+10\)
\(B\left(x\right)=8x^3-x^2-4x+1\)
\(C\left(x\right)=-7x^3+10x^2-3x+16\)
bài1. Cmr
a, 6853+3153chia hết cho 25000
giúp mình đi mình đang cần gấp. mình k hiểu nên k làm đc. mai mình đi học rồi nên các bạn giúp mình đi mà
6853 + 3153 = ( 685 + 315 ) . ( 8652 + 685 . 315 + 3152 ) = 1 000.
Vì các số hạng trong ngoặc đều chia hết cho 25 nên 8653 + 3153 chia hết cho 25 000.
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Giải giúp mình với. Mình không hiểu mấy bài kiểu như này mà sắp thi rồi các bạn giúp mình với
Hãy kể về gia đình bạn bằng tiếng anh
Các bạn giúp mình đi mai mình đi thi rồi ai nhanh mà đúng sẽ tick
mình viết theo gia đình mình nha!!!!
This is my family. There are four people in my family: mother, father, sister and me, My father name is ( tên ). My father is 45 years old. My father is a ( nghề nghiệp). My mother name is ( tên ). My mother is 40 years old. She is a teacher. My sister name is Linh. My sister is 16 years old. She is a student. My name is ( tên). I am is 12 years old. I am is a student.
tick nha!!!!!!!!!!!!!!!!!
Đây:
I love my family a lot because it's my home. In my family, there are four people: my father;my mother ;my younger brother and me. My father is a police.He is 40 years old and He works at the police station.He's tall and fat. He's very strict. My mother is 35 years old. She is a good teacher at Binh Son high school. She'is caring and friendly. She cooks very well.My younger brother is a pupil of Chau O primary school. He is very chubby. And me, I am a student in grade 6, class 6c at Nguyen Tu Tan secondary school. My hobby is reading English books because I can improve my vocabularies and structures ( cấu trúc). I am sociable and humorous. I love my family very much.
Giúp mình làm dạng này với ạ ngày mai thi rồi mình muốn ôn cho kỹ
1, qua cuộc kháng chiến chống quân Tần của nhân dân Tây Âu và Lạc Việt em rút ra được bài học gì?
giúp mình với, mai thi học kì rồi. mà chắc chắn có câu này
ai giúp mình, mình kick cho nha
NGÀY MAI MÌNH PHẢI ĐI THI VIOLYMPIC TOÁN CẤP TỈNH RỒI!VÀ MÌNH CHÚC NHỮNG AI PHẢI ĐI THI GIỐNG MÌNH ĐỀU "VƯỢT LÊN CHÍNH MÌNH NHÉ!"
Giúp mình câu 8 với ngày mai thi rồi