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{(\frac{0.573576436351046}{0.573576436351046})} ^ {2} + {(\frac{0.573576436351046}{0.573576436351046})} ^ {2} - 2 \cos(60)
Evaluate trigonometric functions in the problem
1^{2}+\left(\frac{0.573576436351046}{0.573576436351046}\right)^{2}-2\cos(60)
Divide 0.573576436351046 by 0.573576436351046 to get 1.
1^{2}+1^{2}-2\cos(60)
Divide 0.573576436351046 by 0.573576436351046 to get 1.
1+1^{2}-2\cos(60)
Calculate 1 to the power of 2 and get 1.
1+1-2\cos(60)
Calculate 1 to the power of 2 and get 1.
2-2\cos(60)
Add 1 and 1 to get 2.
2-2\times \frac{1}{2}
Get the value of \cos(60) from trigonometric values table.
2-1
Multiply 2 and \frac{1}{2} to get 1.
1
Subtract 1 from 2 to get 1.