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\frac{\sqrt{3}}{2}+2\sin(60)-2\tan(45)
Get the value of \cos(30) from trigonometric values table.
\frac{\sqrt{3}}{2}+2\times \frac{\sqrt{3}}{2}-2\tan(45)
Get the value of \sin(60) from trigonometric values table.
\frac{\sqrt{3}}{2}+\sqrt{3}-2\tan(45)
Cancel out 2 and 2.
\frac{3}{2}\sqrt{3}-2\tan(45)
Combine \frac{\sqrt{3}}{2} and \sqrt{3} to get \frac{3}{2}\sqrt{3}.
\frac{3}{2}\sqrt{3}-2\times 1
Get the value of \tan(45) from trigonometric values table.
\frac{3}{2}\sqrt{3}-2
Multiply 2 and 1 to get 2.