Common Trigonometry Mistakes
Example: Simplifying a trigonometric expression |

Some problems provide the opportunity for more than one mistake. The Goal
Simplify the expression:
The Mistakes
Find the mistakes:
(Roll the mouse over the math to see a hint in red)
(Roll the mouse over the math to see a hint in red)
(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) Explanations
In the first mistake the fraction is reduced incorrectly; there still should be a sin |

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