... K 12 12kkTTxx 12 12(2 1). (2 1).22DDkkaa 12 212121kpkq )12( 12 )12( 1221nqknpk; 111(2 ... x21TSx Giải: k2i2=(2n+1) )12( 312 )12( 2326,0.28,0 2122 1121121nknkiikki 6,0) .12( 222nikx5,15,28,46,0) .12( 28,422nnLxLn: ... Giải: 535,03,0 12 121221iikk )12( 512 )12( 312 21nknk1 3 12 5 2knkn ...