1、fSFfSF()fcu tgc1()fiiiiiiiiSSTllcNu tglFFcoscosiiiiiiNWbh0iiiiW xTR(cos)sini iiii iisiiclWul tgFW2cossecsiniiiiiiisiiiichubtgFhb12iimiiWhhbmwihiwwjuhw21212()cossec()seciiimiwwiiisiimiib chhhtgFbhh1sincos0iiiiiiiWXXTN1cossiniiiiiiiNWXXT1sinsiniii iiiiiiiissc lultgNWXXFF1sincosiiiistgF0iiii iW xTRQe1s
2、inii iii iiiisiiiicbWubXXtgFeWQRsiniiiiiiisiiiicbWub tgFeWQRiiiiiiiictgbWuQeR、ppZqxx1()fsscu tgFF0:Ypttg 20:()(1)ZEQptxtgxtg 0ttQdEdQMTEtghZdxdxTtx20:()(1)ZEQptxtgxtg 2(1)()fsabxtgFEEQptxtg()ffScptutgtgF()1/fScptu tgtg tgF 2(1)fMxtg()NQptxtg Mcptu tgx 21/1satg tgFtg/MMsabMFEEN2(1)fssMFFtgx/sENM FaEE
3、E11112()()222sec0iiiiiiiiiiiiiiiQiiiixxxTTE ZtgEZZxtgZtgQZWdN d()i iiiissCltgSNUFF2()(1)()iiiiiiiiiiisiicptu tgExtgptxtgQFtgtg111()iiiiiiiQiiiZ hZQTEtgEZxxx121221sec1()sec()(1)()iiiiiisiiiiiiiisiiiiiiiQiniisiEZtgtgxFtgtgxEcpu tgQp xtgFtgtgZQtgtgEtgZTtgxxFtgtg211()sec/(1)()niiiiiiiiisniiiiicxp xTu x tgtgFQp xT tg 11cossinsincosiii iiiii iiiiiiiissWul QtgclP WQPFF 111cossiniiiiiisF11sincoscossinisiiiii iiiiii iiiiP F WQclWQul tgP111cossiniiiiiitg1(cos)sinviiiiiPiiiiFc hPUtgPiic、D KR()i iii iSi iltgclFli iii iltgcl R1313()()ifiiF
