Sequences | Convergence and Divergence

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We show convergence or divergence of some sequences.

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Typo in solution of 1: the difference in the numerator must be addition

KOMATH
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I like how everything is just so conventional...there are no difficult problems or easy problems...we just have problems...so calming

BeastMaker
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Please for the first exercise why did you change the sign of 3 in the numerator?from +3 to -3

LenaAbanda
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But I don't understand. Our lecture told us that when the limit of An = 0 there is no conclusion, but if summation from 1 to infinity converges then An tends towards 0 and not vice versa. Please clarify me on this one

KatlegoLamola-tvso
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Thanks for explanation, do you have video for proving that as well?

alirezaansari
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I am confused (question 3) how are we having √n after dividing n^2 in √n^3

HabibaMusonda
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THANKYOU SO MUCH SIR..
RESPECT FROM PAKISTAN

nahiakhan
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Woww!! Helped me understand the limits of sequence better.

steff.y
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Hello sir,
(1+1/n)^-5 is convergent but how to find its boundness
Please sir explain this my exams are coming

naruto_
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Dear Professor K.O.MATH,

In question 7, how could we know that we divide both denominator and numerator for 3^n? Thank you very much.

nguyendk
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It's really helpful video... Thanku so much sir..

mankoodhiman
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Very helpful sir, make more videos for bsc 5th semester

sandeepdappi
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When I am asked to test whether the series is convergent or divergent
I proceed as an+1 - an and i check if it's less than 0 and finally put limit n-♾️ in an

PratimMukherjee
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Quand utilise-t-on la règle de L'Hubetal ?? Est à 0/0 et aussi à &/&

MahdiMahdi-obyo
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Sir in 1st problem, if we take n^4 common answer is 1. Then it will be convergent sir. Please clarify my doubt sir.

halavathudhairyavalli
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Good work sir it really very easy understand thank u for this video

raviramkiranbharadwaj
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great selection of examples. thank you

andrestejeiro
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hi sir, may i know on question 3, why did you multiply the numerator and denominator with 1/squareroot n3?

khairinmasturahbintiabdulh
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Dear Professor K.O.MATH,

How could I find the limit of this sequence an = 3^n / 4^n

Thank you so much.

nguyendk
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How do you say an is convergent surely when an = 0 because it is necessary but not sufficient....please correct it will confuse many student..

mathdude