+ 1

Find the sum of these following series.

1. 1 + 1/1! + 1/2! + 1/3! + .................. 2. x - x×x/2! + x×x×x/3! - x×x×x×x/4! + x×x×x×x×x/5! - ................... 3. x + x×x/2 + x×x×x/3 + x×x×x×x/4 + x×x×x×x×x/5 + ............... Pls Answer immediately ....

30th Mar 2017, 8:34 AM
Hashis Bin Azeez
Hashis Bin Azeez - avatar
4 Respuestas
+ 14
After thinking a lot: 1234598765😂😂😂😂
30th Mar 2017, 10:12 AM
Dev
Dev - avatar
+ 7
1. e 2. 1-e^(-x) maybe 3.log(1+x)
30th Mar 2017, 10:52 AM
Meharban Singh
Meharban Singh - avatar
+ 7
It's hard to write the whole program. So, here's how you can do it. 1) Define a function for factorial. 2) Scan x. 3) Use a loop from n=1 to (a large number) (ii) sum += pow(-1, n+1) * pow(x, n) / fact(n); (iii) sum += pow(x, n) / fact(n);
30th Mar 2017, 2:05 PM
Krishna Teja Yeluripati
Krishna Teja Yeluripati - avatar
+ 4
The first one is a common equivalence to e (2.71828...) The second one is the Taylor expansion for e^x. The third one is the Taylor expansion for -ln(1-x).
30th Mar 2017, 3:13 PM
Álvaro