cos2B+cosB sin2B-sinB = cosb+1 sinB start on TOP
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Hello, Let's see the denominator : Hence Do you see the thing ? Do you see which formula for cos(2b) you will have to use ? So Now this is the tricky thing : How did I know it ? Because I know where I want to go -------->
Seeing that I thanked you for your hard work, please help with this one http://www.mathhelpforum.com/math-he...h-problem.html
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