Solving for x: PreCalc Question

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To solve the equation Arctan(-4/5) + Arcos(2/SQRT(5)) = Arctan(x), it is essential to first understand the properties of inverse trigonometric functions. The discussion emphasizes the need to make an initial attempt at solving the problem to receive further assistance. Participants suggest breaking down the equation using trigonometric identities and relationships. The importance of showing work and reasoning in order to facilitate help is highlighted. Engaging with the problem actively is crucial for finding a solution.
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Homework Statement




I'm unsure how to even start this problem

Solve for x:

Arctan( -4/5 ) + Arcos (2/SQRT(5) ) = Arctan(x)


Homework Equations





The Attempt at a Solution

 
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