Bài 1.Tìm x

a,/x-2014/ +/x-2015/+ /x-2016/=2

b,/x-1/+/x+3/ = 4

c,/2x+3/ -2/4-x/=5

d,/x+3/+/x+1/=3x

e,/x-1/+ /x-2/+...+/x-100/= 2500

f,/x+1/+/x+2/+...+/x+100/= 605x

Bài 2, Tìm x ,y

a,/x-2006y/=/x-2012/< 0

b,/x-1/<4

c,/x-2011/>2012

d, (3x-1)^2016 +(5y -3)^2018 <0

Cho góc xAy =150 độ .trên tia Oz lấy điểm A rồi kẻ tia Aznằm trong góc xOy sao cho góc OAz =30 độ .Kẻ tia Az' là tia đối của tia Az

a,Vì sao zz' // Oy

b,gọi OM,AN là các tia phân giác của góc xOy và OAz .Chứng minh rằng AN // OM

(vẽ hình giúp mk nha)

Bài 1, Cho góc xAy =40°.Trên tia đối của tia Ax lấy điểm B, kẻ tia Bz sao cho tia Ay nằm trong góc xBz

a,Tính góc xBz để Bz //Ay

b,Kẻ tia AM,BN lần lượt là tia phân giác của góc xAy và góc xBz

(Giúp mk vẽ hình vào nha mk sẽ tặng 1like)

I.Chuyển các câu chủ động sau thành câu bị động

1,Someone was making coffee while I walked into the kitchen

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2,My father was fixing the electrical sockets at this time yesterday

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3,SJC Company was holding the meeting while it began to rain

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4,Was Mrs .Green mending the ladder at ten yestenday?

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5,The chief engineer was instructing all the workers of the plant.

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6,Mr.Han is going to visit Hanoi on his work next week

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7,This company will organize an art exhibition next month

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8,Will Nguyen Hue School hold the English -speaking contest on next Friday?

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9,Tom will return those books back to the library tomorrow

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10,The postman must deliver newspaper to him now .

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11.They can't make tea in cold water .They have to make tea in hold water

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12,A ssudden increase in water pressure may break the dam

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13,You must clean the floor before you paint it

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14,The girl has to decide to study law or pharmacy

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15, People can't learn a foreign language in this week

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16,They make artificial flower of silk

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17,Nick will bring the pizzas to our house .

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18,You can't make tea in cold water .

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19,They are digging some holes in the garden .

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20, Did you receive your visa yesterday .

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21, Where will the company send you next year

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22, He has spelt the word wrongly .

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23, She was doing the homework at 4 yeaterday

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24,They were preparing the meals when I arrived home .

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25, The zookeeper feeds the animals at the zoo every day

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26.Should they help Timothy with cooking dinner?

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27,The managers have copied the file since you left the company.

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28,They are going to steal your money if you are not careful

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29,They are going to plant some flowerss and plants in our school yard next week

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30,Brothers Lazlo and George Biro invented the ballpoint pen

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31,Science anh Technology have completely changed human's life

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32,Has bad weather delayed flight 202 from Miami?

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33, The Library of Congress in the USA employs over 5000 employees.

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34, Vietnamese people celebrate their Lunar New Year Festival around January and February

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35, People celebrate Tet round the last of January and the beginning of February

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Các bạn giúp mk nha với 1like