2021年上海市长宁区高考数学二模试卷

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112

0ABCAB二选题本题有4题满分每5分每有只一正选．生应答纸相位，代正选的方涂．13fxx{112}x1yxAC

BD14l

l

111111111212111A1

B2

C2

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BDpq三解题共题满76分）17AACAC412AM1812

f

19fxex0180.1xx+1g

﹣nnnn+12n﹣nnnn+12nn12nnnnn20FM12FM2M3QqMMN21{}1N*nN*a+412nN*d3{}

参考答案一填题共12小题）3B[0114B4

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1+sinsinsinBcosAB+cosAcosABcosAB+sinA+BsinB

cosAB+sinCsinbcos+bsinsinAb2c2sinAcosASbcsinAsin1Acos2A1A+Abc2cAB

sin+

2二选题本题有4题满分每5分每有只一正选．生应答纸相位，代正选的方涂．13fxx{112}x1yxAC

BDyfx1122x为yx为yx22yf图11yfC14l

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A1

B2

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11111121212121212121221111112121212121212122112211122l

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1212121212111111112121212121111111pqfRmxfxfxgxxxxMmMgxgxMygygq三解题本题有5题满分解下各必在题纸相位写必要步．17AACAC412AM1ACAAeq\o\ac(△,Rt)ABC

r2rL2202ACBCBCBC

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