Evaluate the expression. cos ² 60° + sec ² 150° - csc ²225°

Last updated: 8/4/2022

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)