... ()()() 121 21 022 ambmcm;;,;;,;;==+ =- rrr b) 2 1 121 122 21 2 ammbmmcmm(;;);(;;),(;;)= +-= ++=+rrr c) ()()() 121 21 22 ammmbmmmc;;,;;,;;= +-= -+ =rrr d) ()()()13 21 21 022 abmmmcm;;,;;,;; =-= + ... 11 3 12 2 21 23 123 330akbaaaakbbbbbbbakb,(,,)ì=ïÛ=Û==¹íï=î · 1 122 33abababab =++rr · 1 122 330abababab^Û++=rr · 22 22 123 aaaa=++r · 22 2 122 aaaa=++r · 1 122 33 22 222 2 123 123 ababababababaaabbb.cos(,)..++==++++rrrrrr ... ()()43 1 123 ab;;,;;= =- rr b) ()() 25 4603ab;;,;;= =- rr c) 21 20 22 ab(;;),(;;) =-= - rr d) 322 3 323 1ab(;;),(;;)= =- rr e) 424 222 20ab(;;),(;;) =-= - rr f) 3 21 21 1ab(;;),(;;) =-= - rr...