Даны действительные числа А и В. Получить z = arcsin (|ab|)+10 sin(b) - VB

Dim pi#
Private Sub Form_Load()
    pi = Atn(1) * 4
End Sub
 
Function ASin(ByVal x As Double) As Double
    If Abs(x) = 1 Then
        ASin = pi / 2 * Sgn(x)
    ElseIf Abs(x) < 1 Then
        ASin = Atn(x / (1 - x ^ 2) ^ 0.5)
    End If
End Function
 
Private Sub Command1_Click()
Dim A As Double, B As Double, x As Double, z As Double
    A = Val(Replace(InputBox("Введите значение A=", "Ввод данных", 0.5), ",", "."))
    B = Val(Replace(InputBox("Введите значение B=", "Ввод данных", 0.7), ",", "."))
    x = Abs(A * B)
    z = ASin(x) + 10 * Sin(B)
    MsgBox z
End Sub