, ?? ?s t??t t??? ??st st?r? ??? t?r?s ??? ???t ??r t?? s????r t?t???? r?????? t? ????? s????r ???t??????t???? ???s str?t??? ?r????
, r????t?s ??r ??r?? ??r???t?r a = ?3 ??r
, ??t? ?? ????r ?????s ??r? s??rt?r t??? ???t?????r ?????s? t?? ??? ????? s??? ??? ??t? t? t?? ???t?????rs? ??? t??? t? t?? ????rs ??t???t ????? ?????t?? ?? t??s ??s?? t?? ??t??t ?? t?? ??? ?s r?????? t? 6w ??ts ??r t?? ? s????r ???t?? ?????t??? ???r? t?? s????r k ??s r??????? r?????? ???t????? ?s??? ? s??????????t r??r?s??t?t???? ??? ???s???r?? ??? ??s ??r??r??? ?? ???????r?t??? ??t? t?? ?r??t??r????? ?r??? ?r?? ???? ? ????r?? ?r???t??t?r? ??s ??s????? ??r ??? ???r?t???s ?t ???? ??? t?? ????t?r???s?r? ?????? ???t?t??? ??s ???? ??t??r?t?? t? t?? ??? ?r??t??r???ss?r? ??? ?tt???? ?????? t?????t? ?tt???? ?s ? ????r??? ???? t?? ?tt????r ?s ?ss???? t? ???? ???r??t?r?st??s ?? ? s??? ??????? ???r s??? ?r???ss?? ??t? ?? ? ??????? ???s ?tt??? ??????? t? ??????t? t?? r???st? ?t??r r???????t r??r?s??t?t???s ???? ???? st?????? ??? ?????????s? ?????r s?st?? ?????? ??? s????t?????s?? ?s?s t?? ??s?s ??r r??r?s??t??? ?????rs? ?? ?s?? t?? ???? ??t?r?? r????????? t? ???t????? r??????? r????? t?? s????r k? ??rst? ?? ???s???r?? t?, 3+2)×2×w = 10wst ???s? ??????? ??r? r??? ??????t???s ??? ?? ???? ?? t?? s????r k ??r??? t?? r??????? ??t? ????? ??????r t??s ???? r??????? ????t?r???s?r? ??s ??t ???? ?r??t?????? ??????t?? ??t? ?t?????? s??? ????t?r???s?r?s ?s ?? ????rt??t ?ss?? ??? ??rs???t???? ?????????t???s
, ????s ???????? ??r????r? ????? ??? ?? ????????s? ???????????t ?????r r??r?s??t?t???s ??r ??st ??r????? ?r?t???t??? ??? ?r??s? ??t???s ?? ????tr