SOLUTION: Can someone help me with this problem? THANK YOU! Find all solutions in [0,2pi).Answer in the exact form. 5.7cosx+4=1.15

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Question 1076455: Can someone help me with this problem? THANK YOU!
Find all solutions in [0,2pi).Answer in the exact form.
5.7cosx+4=1.15
Answer by ikleyn(52905)   (Show Source): You can put this solution on YOUR website!
,
5.7cos(x) + 4 = 1.15   --->

5.7*cos(x) = 1.15 - 4 --->

5.7*cos(x) = -2.85   --->

cos(x) =    --->

cos(x) =   --->

x =     and/or   x = .


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