1.Define [ n ] to be the greatest integer less than or equal to n.Compute the area of the
1.Define [ n ] to be the greatest integer less than or equal to n.Compute the area of the
solution set of [ x ]・[ y ] = 2000.
2.If a and b are the roots of 11x2 – 4x – 2 = 0,then compute the product:
(1 + a + a2 + a3 + ...) (1 + b + b2 + b3 + ...)
3.Compute x/y in simplest terms if x + 1/y= 4 and y + 1/x = 1/4.
solution set of [ x ]・[ y ] = 2000.
2.If a and b are the roots of 11x2 – 4x – 2 = 0,then compute the product:
(1 + a + a2 + a3 + ...) (1 + b + b2 + b3 + ...)
3.Compute x/y in simplest terms if x + 1/y= 4 and y + 1/x = 1/4.
數(shù)學人氣:624 ℃時間:2020-08-08 05:57:30
優(yōu)質(zhì)解答
1 定義符號[n] 為不大于n的最大整數(shù),計算滿足 [ x ]・[ y ] = 2000條件的的點所作成圖形的面積.2000=2*2*2*2*5*5*5很明顯,x與y是可以互相調(diào)換的.x可以有2的因素的情況是5種,可以有5的情況則是4種,一起是5*4=20...
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