Cho tam giác ABC vuông tại A,có AB>AC.Lấy điểm M tùy ý trên cạnh AB.Kẻ đường thẳng MH vuông góc với BC tại H.Đường thẳng MH cắt tia CA tại điểm N. aGọi K là giao điểm của CM và BN.Chứng minh AB là tia phân giác của góc HAK b)BM.BA+CM.CK không đổi khi M chuyển động trên cạnh AB

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Bài tập vận dụng Exercise 1: Complete sentences with correct form of adjectives or adverbs. (1) He is twice ___________________ as you. (fat) He has twice as __________________ books as you. (many) English is not so ____________________ as Chinese. (difficult) This subject gets_____________________ (hard) all the time. I’m just getting______________________(confused). The textbook just get________________________(complicated). I spend____________________(much) time on my work. I don’t earn__________________(much) I like. Travelling is becoming____________________(expensive). That hole in your pullover is getting____________________(big). Exercise 2: Complete each sentence using the information in brackets (the rent is high) The bigger a flat is, the higher the rent is. (You learn quickly) The younger you are, the more quickly you learn (The roads are quiet) The earlier you leave, the quieter the roads are (I get confused) The more I try to work this out, the more confused I get (You speak fluently) The more you practice,.................................................... (She became impatient) The longer she waits,....................................................... (The choice is wide) The bigger a supermarket is,............................................ (The beaches get crowded) The better the weather is,................................................. (It’s hard to concentrate) The more tired you are,.................................................... (The product is reliable) The higher the price is,.....................................................