Solve the equations in three trigonometric identities


The following question is based around the three trigonometric identities:

Cos^2x+ sin^x = 1 ; 1 + tan^2x = sec^2x ; 1 +cot^2x = cosec^2x

Question: Solve the following equations between 0° and 360°

(2+3cosß)(3-cosß)=5

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Mathematics: Solve the equations in three trigonometric identities
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