limits
Determine whether the sequence converges or diverges. If it converges, give the limit. 108, -18, 3, -1/2, ...
@aajugdar
oh @ikram002p will help you with this ^^ when i see convergence and divergence my head starts to spin
XD what
Hint: look at the sum of this sequence rather than the sequence itself. Does the sum exist? If it doesn't or does, what do you think that implies?
Professor Parth ( @ParthKohli ) Can Help you.
\(\large a_n=\frac{a_(n-1)(-1)^n}{6}\)
so as u can see its sighned geometric series after all :D
it well be somthing like this |dw:1402676254724:dw|
since your dividing each of them by -6 wouldnt it be /-6? instead of /6?
lets think of it in simple way a_0=108 a_1=108/-6 a_2=....
-18 c:
why do u think its diverge ?
because eventually it dies.... and im thinking of the one scene from the movie
xD
Does the sum exist? The sum of an infinite geometric sequence exists when\[|r| < 1\]If an infinite sum exists (converges), what is the last value of the sequence supposed to be?
well ur correct it dies at the end hehe (sequence not series )
so it is divergent?
PK it sequence not series we dnt wanna the some
try to think of it like this |dw:1402676813779:dw|
where the limit go when n goes to infinity
u can rewrite it like this as well \(\lim_{n \rightarrow \infty } \Huge \frac{108}{(-6)^n}\)
gor an isea abt it nw ? can u solve this limit ? where is the end of this limit u just said (because eventually it dies.. ) soo what do u have nw ?
|dw:1402677128751:dw|
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