tan45°+5cot30°-6tan60°-2cos60°

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tan45°+5cot30°-6tan60°-2cos60°

tan45°+5cot30°-6tan60°-2cos60°
tan45°+5cot30°-6tan60°-2cos60°

tan45°+5cot30°-6tan60°-2cos60°
tan45°+5cot30°-6tan60°-2cos60°
=1+5×√3-6×√3-2×1/2
=-√3