i added a file with the questions(adsbygoogle = window.adsbygoogle || []).push({});

and the solutions of the book

http://img178.imageshack.us/my.php?image=img7565zj6.jpg

question 1 is:

calculate "e" with an error less than 10^-9??

i started the solving of this problem

by finding the expretion of Rn for e^X

NEXT

we need to chhose a point C which is located between X and A

A<c<X

i know that X equals to 1

but why in the solution they tell that A=0???

question 2 is:

find cos 9 with an error less than 10^-5 (9 is degrees not radians)

here after findinf the expretion of Rn

where did i use to put "c"

because they solve this problem without c

i dont know why??

question 3:

i dint understand the way they solved it

because they didnt use any tailor series here

where is the function that i need to build a tailor series from??

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# Homework Help: 3 questions in tailor series

**Physics Forums | Science Articles, Homework Help, Discussion**