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2-3 cos x = 5+3cosx for 0 < x < 180
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2-3 cos x = 5+3cosx for 0 < x < 180
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Jul 11, 2018
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2-3 cos x = 5+3cosx for 0 < x < 180
Mathematics
high-school
Colin Pear
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Colin Pear
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Let's combine like terms onto one side by adding 3cosx and subtracting 5 to get:
-3 = 6cosx
Divide both by 6
-1/2 = cosx
Between 0 and 180, cos is -1/2 at 120 degrees.
I hope this Helps!
Bcattle
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Jul 18, 2018
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Bcattle
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