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Write a program that would find the nth term of a geometric
progression, given the value of
first term and common ratio. Any inbuilt function that the
language provides for calculating
exponent should not be used.

Answer Posted / Pankaj Kumar Verma

VB.NET Code: (This code doesn't use any built-in functions to calculate exponent.)

```vbnet
Public Function GetNthTerm(ByVal firstTerm As Decimal, ByVal commonRatio As Decimal, ByVal n As Integer) As Decimal
Dim term As Decimal = firstTerm
For i As Integer = 1 To n - 1
term *= commonRatio
Next
Return term
End Function

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