How many terms of the sequence 18, 16, 14 ............. should be taken so that their sum is zero?

Expert Solution

How many terms of the sequence 18, 16, 14 ............. should be taken so that their sum is zero?

Sol.

From the given sequence we can easily find the first term and common difference:

First term, a = 18

Common difference, d = 18-16 = - 2

To find the required number of terms, n we proceed as follows:

Thus, the required number of terms, n is equal to 19

Shams answered 2 years ago

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