Common Trigonometry Mistakes
Solving an Equation

The Goal

Solve the following equation for x:


The Mistake

Find the mistake:


(Roll the mouse over the math to see a hint in red)

The Correction


(Roll the mouse over the area above to see the correction in blue)

An Explanation

Don't forget the negative square root of c when solving X2 = c.
(In this example X = sin(x) and c = 3/4.)

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