Let be an infinite sequence of reals. Show that if is convergent then we must have . If , must be convergent?
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Originally Posted by Pythagorean12 Let be an infinite sequence of reals. Show that if is convergent then we must have . If , must be convergent? What have you tried? Note that . For your second question, what about ?
Originally Posted by Pythagorean12 If , must be convergent? You could try or .
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