SOLUTION: how do you solve 3 cos(x)+4=5 cos(x)+5 on the interval 0<x<360
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Question 558497
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how do you solve 3 cos(x)+4=5 cos(x)+5 on the interval 0
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how do you solve 3 cos(x)+4=5 cos(x)+5 on the interval 0<360
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3 cos(x)+4=5 cos(x)+5
2 cos (x)=-1
cos(x)=-1/2
x=240º and 300º (in quadrant III and IV where cos<0)