（109681-2.5X）*12/23*0.9=23648+10X
    500（1+m%）*1000（1+m/2%）=660000
    y
    -(5a-4)^2-3(5a-4)+4=-a
    -（5-x）²-3(5x-4)+4=-x
    800（x-2）+100=500x
    8x+(10-x)乘5=41
    8x十(10-x)X5=41
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)
    1/xsin(1/x)

Home page << page1390 page1391 page1392 page1393 page1394 ... ... page1396 page1397 page1398 page1399 page1400 >> Last page 31249 pages in total