100÷5= 173﹣35= 70×80= 9100÷70= 810÷27= 9.93﹣6.57=
120×5= 213÷3= 2100÷30= 420×20= 230×6= 1.46+0.7=
60+250= 420﹣50= 5.82﹣4.9= 203﹣80= 7.2+2.8=84÷6= 148+37=
5﹣0.3=50×80= 145+55= 48×50= 1.05﹣0.09=
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