Page 22 - Math SL HB Sem 1

SEOUENCE AND SERIES

Example2. 1-he n term for a sequence is given by

( 2\"''
=
'" lr.j

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

(b) Find thc value oln such thut th" r",* i, 256
6561

Example 3: $5000 is invested for 4 years al 7Yo per annum compound interest,
compounded annually. What will it amount to at the end of this period.

2-10