The amount of the investment after one year is .

Find .

represents the amount of the investment after two years.

The amount of the investment after two years is .

Find .

represents the amount of the investment after three years.

                                                           ( Since )

The amount of the investment after three years is .

Find .

represents the amount of the investment after four years.

                                                      ( Since )

The amount of the investment after four years is .

So the amount of the investment after years is .

.

.

.

.