Sun April 29, 2012 By: Gayathri D

based on trignometry

Expert Reply
Mon April 30, 2012
It can be seen that the ratios, AC/ PR and AB/ PQ are equal. So, we can assume it to be equal to a real number. This is a simple method of solving questions. Whenever two ratios are equal, for calculation purposes, we can assume both to be equal to a real number k. That is the reaon whey we have taken k here also.
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