Page 22 - Math SL HB Sem 1

S ANI)

Example2. 1'he n tcrm for a scquence is given by

:
," (.;J

(a) Prove that this sequence is a geometric sequence.

2j!
(b) Find thc value ofn such th61 ths 1q1rn i5
6561

Example 3 $5000 is invested for 4 years at 702 per annum compound interesl,
compounded annually. What will it amount to at the end of this period.

2-10