i simply till then i mulitpy by -1 for both denominator and numerator so i get -3 in the end. is this correct? the ans given is . but i can get -3. which shld be the correct ans?
Last edited by CaptainBlack; Aug 31st 2009 at 12:21 AM.
i simply till then i mulitpy by for both denominator and numerator so i get in the end. is this correct? the ans given is . but i can get . which shld be the correct ans?