LIMITASSS

LIM ( x^n + n(x^(n+1)) + 1 ) / e^[x]
x-->∞

[x] = GIF

13 Answers

1
Lonely 1 ·

THE FUNDA TO BE USED HERE IS

WHEN x→∞ THEN [x] CAN BE TAKEN AS x
AND IN THE DENOMINATOR USE THE EXPANSION OF ex = 1+x/1!+x2/2! + x3/3!........
CUT IN THE NUMERATOR AND THE DENOMINATOR TO GET UR ANSWER

1
avni ·

thank you.

but
is expanssion of e^x in syll?

1
skygirl ·

limit =0 ?

1
skygirl ·

arey ... for objective purpose,,,

put n=0 [since nothing is told about n]

so u get limx->∞ 2/e[x] = 0

1
Lonely 1 ·

yes it would be advantageous to know the expansions
some questions r made 4 them
it is 1 of them

1
avni ·

nahi pata ans

1
Pavithra Ramamoorthy ·

a small correction.... we get 1/e^[x] =0. isn it???????

1
Akand ·

@sky we just cant substitue directly n as zero as d ans can have n term in limit questions

1
prateek punj ·

nahin yaar lim x->∞ 2/e[x] = 0

1
skygirl ·

no there are two trms : xn = 1 wen n=0 and there is another 1 ..

so 1+1 =2 [3]

waise kya farak parta ?

1
Pavithra Ramamoorthy ·

@skygirl k.. got it.. btw check ur chatbox.. pls.

1
skygirl ·

but nothing is told about 'n' //

so .............. !!

62
Lokesh Verma ·

ex may or may not be in syllabus...

but it is a must know!

I dont think you need to know any expansion other than ex aand log x

Your Answer

Close [X]