SOLUTION: Given that sinx=3/5 and it is in quadrant 1. Find sin2x and cos 2x and tan 2x

Question 1196984: Given that sinx=3/5 and it is in quadrant 1. Find sin2x and cos 2x and tan 2x
Answer by ikleyn(52884) (Show Source): You can put this solution on YOUR website!
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Given that sinx=3/5 and it is in quadrant 1. Find sin2x and cos 2x and tan 2x
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Step by step

(a)  If sin(x) = 3/5 and x is in QI, then

        cos(x) =  =  =  =  = 


     Now sin(2x) = 2*sin(x)*cos(x) =  = .    ANSWER


     Part (a) is complete.  From the answer, notice that 2x is in QI.



(b)  cos(2x) =  =  =  =  = .    ANSWER



(c)  tan(2x) =  =  =  =  = .    ANSWER

Solved. All your questions are answered.

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