Cho hình thang vuông MNPQ có góc M = góc N = 90 độ , MQ = 32cm , NP = 40cm , MN = 17 cm. a.Tính diện tích hình thang MNPQ b. Tính góc P và QP?

1. Rút gọn các biểu thức sau: a. A = 1002 - 992+ 982 - 972 + ... + 22 - 12 b. B = 3(22 + 1) (24 + 1) ... (264 + 1) + 12 c. C = (a + b + c)2 + (a + b - c)2 - 2(a + b)2 //22 là 2bình phương 264 là 2 bình 64//

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Complete the sentence with the words in the box. acquaintances mutual give-and-take loyal incapable selfish friendship intimate emotional constancy trust sympathy 1. I have a lot of ________ at work but I don't have any real friends. 2. Despite differences in background and outlook, their partnership is based on _______ respect, trust and understanding. 3. Our relationship can not last longer because he seems to be very __________. He only thinks about himself. 4. I met her at the school opening in 1990. We have been _________ friends since then. 5. To keep a friendship, you can not always resist on your own way - there has to be some _________. 6. When all her other friends deserted her, Steve remained _________. 7. She is a brilliant mathematician, but as a lecturer, she is totally __________. 8. What do you know about a true _________? And what does it tell you? 9. You can _______ Jack to look after the money. He's completely honest. 10. The ________ of your love for Indian food really amazes me. 11. They really want to send my warm _______ to the people who lost their relatives in the earthquake on December 13th . 12. That song is so ___________. It always brings a tear to my eye.

Phân tích đa thức thành nhân tử Em đang cần gấp trước 9h giúp e vs huhu

Làm và giải thích giúp em gấp ạ.cảm ơn ạ

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