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1、做题如做事,考试如人生。有所为有所不为,有所不为才能有所为。做题如做事,考试如人生。有所为有所不为,有所不为才能有所为。学会舍得,有舍有得,小舍小得,大舍大得。学会舍得,有舍有得,小舍小得,大舍大得。审题慢一点(审题慢一点(3遍),做题就会快一点。遍),做题就会快一点。1)1 (1egvs20max1)1 (1e)1 (1arctane1)1 ()1 (22220maxeegvsgRvLvL222022121LgRvv22024mgFRvmT222RmgRFvT2RmgTFTFOgRssFT2gRFT2gRv32)43(20LRgRv22)(nrirrinrnrirnrrmii)(222)(n
2、rigmWi)()(22nrignrnrir)(4324ninigr层n层inrirnrir层n层inrirnrir)2121(433324nnnngrW)4) 1(2)1 (42224nnnnnngr)4141(24ngr0n0412n441grW总0v20021sin,cosgttvhtvshsxy) 12(cos2sin)tan(cos222220hsgsshgsvhhshhsshsgs2cos2sin2222222shtan2222sin,coshshhss0vhsxyhhsgsvsin2coscos2sin22220hhsgs)2sin(2221)2sin(hhsgsv222min0
3、2)()(2222222hhshhshhsgs)(22hhsgJhhsmgmvE45.34)(212122min02min0v20021sin,cosgttvhtvshsxy)tan1 (2tan2202vgssh0)2(tan2tan2022022hvgssvgs0)2(4)2(2022220hvgsgssv2220shgghvJhhsmgmvE45.34)(212122min02min224coscosBBBvvvv221mvWWGTHmgWG) 12(241) 12(BTmvmgHWHHBA0vQDrmmGEP21)(RrrMmGEPRr rMmGEpRr RMmGEpmghEp221kxEp2122221121,21attvsattvsdss21,2/175. 0sma 21atvvatvv2211, smvsmv/5 . 1,/5 . 62122221attvs2/175. 0,sma ,22atvvsmv/5 . 12avs222221121attvsdss21,avs2,2222/20. 0sm21smv/0 . 6102vVmmvm)(2111221)(21VmmE21212121mmvmJ4 .14m2m0v