Giúp mình vs ạ Mik cảm ơn!
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a, Xét tam giác ABM và tam giác ECM
^AMB = ^EMC ( đối đỉnh )
BM = MC ( gt )
AM = ME ( gt )
Vậy tam giác ABM = tam giác ECM ( c.g.c )
b, Vì tam giác ABM = tam giác ECM ( cma )
=> AB = EC
c, Vì tam giác ABM = tam giác ECM ( cma )
=> ^ABM = ^ECM
mà 2 góc này ở vị trí so le trong => AB // CE
\(a,f\left(x\right)+g\left(x\right)\\ =10x^5-5x^5-8x^4+2x^4+6x^3-4x^3-4x^2+6x^2+2x-8x+1+10+3x^6+2x^6\\ =5x^6+5x^5-6x^4+2x^3+2x^2-6x+11\\ f\left(x\right)-g\left(x\right)\\ =3x^6-2x^6+10x^5+5x^5-8x^4-2x^4+6x^3+4x^3-4x^2-6x^2+2x+8x+1-10\\ =x^6+15x^5-10x^4+10x^3-10x^2+10x-9\)
\(b,f\left(x\right) +g \left(x\right)=3x^4+2x^4+15x^3-15x^3+7x^2-7x^2+3x-3x-\dfrac{1}{2}+\dfrac{1}{2}=5x^4\\ f\left(x\right)-g\left(x\right)=3x^4-2x^4+15x^3+15x^3+7x^2+7x^2+3x+3x-\dfrac{1}{2}-\dfrac{1}{2}\\ =x^4+30x^3+14x^2+6x-1\)
games: computer games, chess, blind man's buff trò chơi: trò chơi điện tử, cờ vua, bịt mắt bắt dê
sports: football, gymnastics, aerobics thể thao: bóng đá, thể dục dụng cụ, thể dục nhịp điệu
arts and crafts: pottery, painting, making handmade flowers nghệ thuật và thủ công: gốm, vẽ tranh, làm hoa thủ công
other activities: swimming, sleeping, watching TV các hoạt động khác: bơi lội, ngủ, xem TV
1, What would he like to have for breakfast?
He would like to have a sandwich
2,Who would you like to go fishing with?
I would like to go fishing with my father
3,What would her children like to do in the summer?
They would like to go swimming
4,When would Mrs Tam like to go shopping?
She would like to go shopping at weekends
5,Where would Hung and Tung like to study
They would like to study in the library
1 What would he like for breakfast?
He'd like a sandwich
2 Who would you like to go fishing with?
I would like to go with my father
3 What would her children like to do in summer?
They would like to swim inpool
4 When would Mrs Tam like to go shopping?
She would like to go shopping on the weekends
5 Where would Tung and Hung like to study ?
THey would like to study in the school library
A - D - B - C