学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.40
所属科目:高中信息技术
有如下程序段:
Dim a(1 To 6) As Integer
a(1) = 6
For i = 2 To 6

a(i) = Int(Rnd * 30 + 1) * 3

If a(i) Mod 2 = 1 And i Mod 2 = 0 Then

i = i - 1

ElseIf a(i) > 60 Then

a(i) = a(i) - a(i - 1)

End If

Next i
执行该段程序后,a(1)~a(6)中的值可能是
A.6,36,15,42,72,12B.6,14,36,51,18,21
C.6,60,3,87,0,90D.6,18,21,75,27,21
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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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