Question 754188
Solve the equation for cos * theta - tan * theta * cos *theta = 0 for for 0 which is < or = to theta which is less that 2pi . Write your answer as a multiple of pi, if possible.
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cosx-tanx cosx=0
cosx(1-tanx=0
..
cosx=0
x=&#960;/2, 3&#960;/2
or
1-tanx=0
tanx=1
x=&#960;/4, 5&#960;/4