(1)李强把20000元人民币存入银行,定期2年,年利率为4.2%,利息税为5%,到期他实际可获本、息共多少元?列式: .
(2)圆柱形水管长15分米,截面直径3分米,水管的侧面积是多少平方分米?列式: .
(3)我校二月份用电量1200千瓦时,经过线路改造后,三月份用量比二月份节约了15%,三月份节约用电多少千瓦时?列式: .
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2