On the calculation of acute angle trigonometric function |Tan 45 ° - Tan 60 °| + under root sign (Sin & # 178; 60 ° - 2cos 30 ° + 1)

On the calculation of acute angle trigonometric function |Tan 45 ° - Tan 60 °| + under root sign (Sin & # 178; 60 ° - 2cos 30 ° + 1)

|tan45°-tan60°|+√(sin² 60°- 2cos30°+1)
=|1-√3|+√[(√3/2)²-2×√3/2+1]
=(√3-1)+√(3/4-√3+1)
=√3-1+√[(7-4√3)/4]
=√3-1+1/2√(2-√3)²
√3-1+(2-√3)/2
=√3-1+1-√3/2
=√3/2