The formula:  <math><mi>R</mi><mo>=</mo><mrow><mo>[</mo><mfr

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4 + 11 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

The formula:  R=[(1+i)n+1−1i]  is used to calculate:

Sum of annuity due

Present value of annuity due

Sum of ordinary annuity

Present value of ordinary annuity