So i started calculus and am currently stuck at the following problem.

Q.Evaluate by algebraic techniques:

The answer provided by the book is:

Thanks.

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- June 22nd 2013, 10:12 AMhacker804Limit problem
So i started calculus and am currently stuck at the following problem.

Q.Evaluate by algebraic techniques:

The answer provided by the book is:

Thanks. - June 22nd 2013, 10:44 AMMINOANMANRe: Limit problem
The answer is correct..

factorise both terms of the fraction EX: x^n-a^n=(x-a)(x^(n-1)+ax^(n-2)+...+a^(n-1)....

do the same for the denominator ..simplify and then the limit when x goes to a is the one you mentioned .... - June 22nd 2013, 12:07 PMPlatoRe: Limit problem
- June 22nd 2013, 06:36 PMhacker804Re: Limit problem
Yes it's a mistake in the book.Thanks for the help.

- June 22nd 2013, 10:24 PMProve ItRe: Limit problem