tan^2 60° +4cos^2 45°+3sec^2 30° + cos^2 90°
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answer is 9. 3 + 2 + 4 + 0= 9
root 3 square +4(1/ root 2) +3(2/root 3)+0
root 3 square +4(1/ root 2) +3(2/root 3)+0
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