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trap
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this question doesn't look hard when i read it, but then when i tried doing it, i can't
Suppose [tex]\sum[/tex]Ak and [tex]\sum[/tex]Bk are both convergent series with positive terms. Does it follow that [tex]\sum[/tex]AkBk converges? Show your answer is correct with an appropriate proof/ counter example.
Thanks for help.
Suppose [tex]\sum[/tex]Ak and [tex]\sum[/tex]Bk are both convergent series with positive terms. Does it follow that [tex]\sum[/tex]AkBk converges? Show your answer is correct with an appropriate proof/ counter example.
Thanks for help.