SOLUTION: Find the exact value of tan [arcsin (2/5)]. For full credit, explain your reasoning.

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Question 1086583: Find the exact value of tan [arcsin (2/5)]. For full credit, explain your reasoning.

Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
You have an angle  such that  = .


In addition, you know that  is in QI.


Hence, cos =  =  =  = .


Then  =  =  =  = .

Solved.



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