# 8.1.18. Determine whether the sequence converges or diverges.a cos tna-n=cos(pi)(n))sigma from (0) to inf, cos(pi)(n))1.00.80.60.40.220 40 60 80 100

Question

### 8.1.18. Determine whether the sequence converges or diverges.

a_n=cos((pi)(n))

sigma from (0) to inf, cos((pi)(n)) help_outlineImage Transcriptionclose8.1.18. Determine whether the sequence converges or diverges. a cos tn a-n=cos(pi)(n)) sigma from (0) to inf, cos(pi)(n)) 1.0 0.8 0.6 0.4 0.2 20 40 60 80 100 fullscreen
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Step 1

We have given a sequence

Step 2

We have to find that the given sequence converges or diverges within the limits 0 to ∞

Step 3

Since,

cos(nπ) = 1, (When n is even)

cos(...

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