Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Sequences & Series - mixed Arithmetic and Geometric series.
Test Yourself 1 - Solutions.


 

1. 2.
3.

4. (i) n = 0 ∴ R0 = 4.

(ii)

(iii)

(iv) The rainfall starts off very slow until about 10 minutes when the GS indicates the rain is becoming heavier. That model is then starting to become more significant in determining the amount of rain. The exponential increases rapidly as the rain almost doubles each minute so that at the end of 30 minutes it is a torrential tropical downpour.
5.

6. (i)

(ii)

7. 8.
9.

10. (i)

(ii)

(iii)

(iv)