Solving for x: PreCalc Question

Thread starter GreenPrint
Start date Mar 9, 2010

In summary, the process for solving for x in a precalculus equation involves using algebraic techniques such as combining like terms, isolating x on one side of the equation, and applying inverse operations to both sides of the equation. It is not possible to solve for x in a precalculus equation without using algebra, as other methods may not be reliable. To determine the correct solution for x, it should satisfy the given equation when substituted in for all variables. Common mistakes to avoid when solving for x include forgetting to distribute or combine like terms, making errors with negative signs, and forgetting to apply the order of operations. The recommended order for solving for x in a precalculus equation is to first simplify the equation, then isolate x

Mar 9, 2010

GreenPrint

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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Mar 9, 2010

Mark44

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FAQ: Solving for x: PreCalc Question

What is the process for solving for x in a precalculus equation?

The process for solving for x in a precalculus equation involves using algebraic techniques such as combining like terms, isolating x on one side of the equation, and applying inverse operations to both sides of the equation.

Can you solve for x in a precalculus equation without using algebra?

No, solving for x in a precalculus equation requires algebraic techniques such as manipulating equations and applying inverse operations. Other mathematical methods may be used in certain cases, but algebra is the most common and reliable approach.

How do you know when you have found the correct solution for x in a precalculus equation?

The correct solution for x in a precalculus equation should satisfy the given equation when substituted in for x. This means that the equation should be true when the value of x is plugged in for all variables.

Are there any common mistakes to avoid when solving for x in precalculus?

Yes, some common mistakes to avoid when solving for x in precalculus include forgetting to distribute or combine like terms, making errors with negative signs, and forgetting to apply the order of operations.

Is there a specific order in which I should solve for x in a precalculus equation?

Yes, it is typically best to start by combining like terms and simplifying the equation, then isolating x on one side of the equation, and finally applying inverse operations to solve for x. However, the specific order may vary depending on the given equation.