SOLUTION: solve: 2 cos(squared)t-9 cos t = 5
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Question 195808: solve: 2 cos(squared)t-9 cos t = 5
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
(cos{t} - 5) = 0)
Use the Zero Product Rule:
or
But the domain of 
is 
so exclude this root.
Now all you need to do is determine:
})
John
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