Tang Jiacheng's answer to Arfiz's Junior College 2 H3 Maths question.
Owh.. thnx. I was wondering about the (-1)^n. how do we confirm that it is divergent?. I know that it is not conv,but is there any test to proof it?
The terms do not tend to 0 so it is divergent?
Owh.. ok. thnx alot
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