帮忙解几道数学题,要完整的过程,谢谢O(∩_∩)O
解:(1)原式=(5/3-2/3) (7/4-7/4) =1 (2)原式=(43/8-17/8) 16/5-16/5 =13/4 (3)原式=(2/3 17/3-29/3)-(7/2 5) =-10/3-17/2 =-71/6 (4)原式=(-2/3 2/3) (3/4-3/4) (3/2-2) =-1/2 (5)原式=-13/6-3/...全部
解:(1)原式=(5/3-2/3) (7/4-7/4) =1 (2)原式=(43/8-17/8) 16/5-16/5 =13/4 (3)原式=(2/3 17/3-29/3)-(7/2 5) =-10/3-17/2 =-71/6 (4)原式=(-2/3 2/3) (3/4-3/4) (3/2-2) =-1/2 (5)原式=-13/6-3/5 =-83/30 (6)原式=(-1 2) (-3 4) ······ (-2003 2004) =1 1 ······ 1(共有2004/2个1) =1002。
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