on tap dai 8 ki 1 tiet 4
... ) 52 54 52 5505022 23223 + + = + +++ = xx xxx xx xxxx ( ) ( ) ( ) 52 55 52 54 22 + + = + + = xx xxx xx xxx ( )( ) ( ) 2 1 52 51 = + + = x x xx P = 0 khi 10 1 2 1 == xx x (TMĐK) c. 244 4 1 2 1 4 1 == = x x khiP . 2 1 24 == xx (TMĐK). ... 2 + x § 8. 3 2 63 2 6 2 3 = − − = − + − x x xx x § 9. ( ) yx x xy x x x x xy 10 3 13 5 12 . 8 13...
Ngày tải lên: 30/10/2013, 05:11