SOLUTION: sin3xcosx+cos3xsinx= -1
i need to find all exact values in the interval of 0 to 2pi. for the above equation.
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-> SOLUTION: sin3xcosx+cos3xsinx= -1
i need to find all exact values in the interval of 0 to 2pi. for the above equation.
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Question 809840: sin3xcosx+cos3xsinx= -1
i need to find all exact values in the interval of 0 to 2pi. for the above equation. Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! sin3xcosx+cos3xsinx= -1
find all exact values in the interval of 0 to 2pi
Identity: sin(a+b)=sinacosb=cosasinb
sin3xcosx+cos3xsinx= -1
sin(3x+x)=-1
sin(4x)=-1
4x=3π/2
x=3π/8
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