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\frac{\sqrt{3}}{2}=\cos(-30)
Get the value of \cos(30) from trigonometric values table.
\frac{\sqrt{3}}{2}=\cos(30)
Use the property \cos(-x)=\cos(x).
\frac{\sqrt{3}}{2}=\frac{\sqrt{3}}{2}
Get the value of \cos(30) from trigonometric values table.
\frac{\sqrt{3}}{2}-\frac{\sqrt{3}}{2}=0
Subtract \frac{\sqrt{3}}{2} from both sides.
0=0
Combine \frac{\sqrt{3}}{2} and -\frac{\sqrt{3}}{2} to get 0.
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Compare 0 and 0.
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