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January 31, 2015

January 31, 2015

Posted by **Betty** on Saturday, February 2, 2013 at 1:39am.

- trigonometry -
**vii**, Saturday, February 2, 2013 at 2:17amyour period is pi i got that by dividing 2pi(which is the regular period for cos and sine) by 2 and then you move everything up 2 and to the right pi

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