SOLUTION: 0<×<360 cos2x=0.4 and tan3x is positive find values of x

Question 1148386: 0<×<360 cos2x=0.4 and tan3x is positive find values of x
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
0<×<360 cos2x=0.4 and tan3x is positive find values of x
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2x = 66.42 degs
x = 33.21 degs
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2x = 293.58 degs
x = 146.29 degs
tan(x) is negative, NG
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