Answers

2016-03-12T17:45:34+05:30
It is given in Ncert or Rd Sharma of class 10 in the chapter called circles if you do not find then ask me I will tell you
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2016-03-12T21:23:35+05:30
Just see this answer in 10th class state text book pg.no:227 I trust you will definitely understand
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