Saturday

January 31, 2015

January 31, 2015

Posted by **Anonymous** on Friday, April 25, 2014 at 4:10am.

- trignometry -
**gourav**, Saturday, September 20, 2014 at 12:45amtan4x

=tan2.2x

=2tan2x/1-tan22x

=2.2tanx/1-(2tanx/1-tan2x)2

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