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Determine the general solution of -4sinx = 5cosx​

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Explanation:

Divide both sides by cosine to get:


- 4tan(x) = 5

Divide both sides by -4 to get:


tan(x) = - (5)/(4)

Take the arctangent of both sides to get:


x = arctan( - (5)/(4) )

Plus any integer rotation of pi (180 degrees)

User Vitaly
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