If cosx=-3/5 and pi<x<3pi/2, find tan2x I got tan2x=-16/7 Is my answer right? or is it tan2x=-24/7?
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Originally Posted by skeske1234 If cosx=-3/5 and pi<x<3pi/2, find tan2x I got tan2x=-16/7 Is my answer right? or is it tan2x=-24/7? Hi skeske1234, Actually, I got If , then and and So,
Last edited by masters; Apr 9th 2009 at 01:07 PM.
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