# What is #s_n# of the geometric series with #a_1=4#, #a_n=256#, and #n=4#?

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The ( s_n ) of the geometric series with ( a_1 = 4 ), ( a_n = 256 ), and ( n = 4 ) is ( s_4 = 340 ).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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