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When solving trig equations there are a few things to keep in mind: 1.Before you solve any trig equation, check the domain of the problem. (Is it asking for all solutions or those between 0 and 360° or 0 and 2π?). 2.To determine if you answer in degrees or radians: a.Always follow the directions b.If the problem doesn’t specify in the directions 1.If the problem has the variable x, answer in radians 2.If the problem has the variable θ, answer in degrees 3.Always give exact answers (from unit circle) when possible. When solving trig equations there are a few things to keep in mind: 1.Before you solve any trig equation, check the domain of the problem. (Is it asking for all solutions or those between 0 and 360° or 0 and 2π?). 2.To determine if you answer in degrees or radians: a.Always follow the directions b.If the problem doesn’t specify in the directions 1.If the problem has the variable x, answer in radians 2.If the problem has the variable θ, answer in degrees 3.Always give exact answers (from unit circle) when possible.

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Example 1) Solve a.Solve for [0°, 360°) b. Find all solutions (Find the general solution)

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Example 2) Solve a.Solve for [0, 2π) b. Find all solutions (Find the general solution)

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Example 3) Solve for [0°, 360°)

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Example 4) Find all the solutions for

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Example 5) Solve for [0°, 360°) Round to nearest tenth of degree a. b.

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Mathematics for IT Lecture 4 trigonometric. TRIG REVIEW Trig Function Evaluation : How to use the unit circle to find the value of trig functions at some.

Mathematics for IT Lecture 4 trigonometric. TRIG REVIEW Trig Function Evaluation : How to use the unit circle to find the value of trig functions at some.

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