... 11 312 2 2123 123 330akbaaaakbbbbbbbakb,(,,)ì=ïÛ=Û==¹íï=î · 1122 33abababab =++rr · 1122 330abababab^Û++=rr · 2222 123 aaaa=++r · 222 122 aaaa=++r · 1122 33222222 123 123ababababababaaabbb.cos(,)..++==++++rrrrrr ... ()()() 121 21022ambmcm;;,;;,;;==+=-rrr b) 2 1121 122 212 ammbmmcmm(;;);(;;),(;;)=+-=++=+rrr c) ()()() 121 2122 ammmbmmmc;;,;;,;;=+-=-+=rrr d) ()()()13 2121 022abmmmcm;;,;;,;;=-=+ =-rrr ... ()()()111 0124 23abc;;,;;,;;=-==rrr b) ()()()434 2121 21abc;;,;;,;;==-=rrr c) ()()() 3121 1122 1abc;;,;;,;;= ==-rrr d) ()()()425313201abc;;,;;,;;===rrr e) 23 1120 324abc(;;),(;;),(;;)==-=-rrr...