Page 20 - Math SL HB Sem 1

EOUENCE ANI) SERIES

Exampl e 4: 'fhe starting salary for a clerk is RM9600 per year. The annual increment is

rw 780.
th
(a) How much the clerk eams at her 20 year?

(b) What is her total income for l0 years?

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Example 5: The sum of tlre first n terms of an Ap is S = n2 - 3n. write down the fourth
term and the n '' term-

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