学进去-教育应平等而普惠
试题
类型:其他计算
难度系数:0.65
所属科目:小学数学
勇夺小红旗.
                                                                    
1×3=                      7×4=                      2×6=                      8×4=
4×2=                      2×2=                      7×9=                      7×7=
5×6=                      3×6=                      8×3=                      9×8=
8×2=                      9×6=                      5×7=                      7×8=
9×4-9=                 3×3+56=               5×4-2=                 8×8-60=
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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