Question: Evaluate the expression.cos 60 + sec 150 - csc 225cos 60 + sec 150 - csc225=[?](Simplify your answer, including any radicals. Use

Evaluate the expression.cos ² 60° + sec ² 150° - csc ²225°cos ²60° + sec ² 150° - csc²225°=[?](Simplify your answer, including any radicals. Use integers or fraction)

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