SOLUTION: 2. Given that
(4 20)
2
n +
n
is the sum of the first n terms of an arithmetic sequence.
a) Write down the expression for the sum of the first
( 2) n − terms. [3 ma
Algebra ->
Sequences-and-series
-> SOLUTION: 2. Given that
(4 20)
2
n +
n
is the sum of the first n terms of an arithmetic sequence.
a) Write down the expression for the sum of the first
( 2) n − terms. [3 ma
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Question 1186957: 2. Given that
(4 20)
2
n +
n
is the sum of the first n terms of an arithmetic sequence.
a) Write down the expression for the sum of the first
( 2) n − terms. [3 marks]
b) Find the first term and the common difference of the above sequence. Answer by greenestamps(13200) (Show Source):
