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\frac{a n 45 \cdot 0.973139869965405 ^ {2}}{1 - \cos^{2}(60)}
Evaluate trigonometric functions in the problem
\frac{an_{45}\times 0.947001206516285352395896814025}{1-\left(\cos(60)\right)^{2}}
Calculate 0.973139869965405 to the power of 2 and get 0.947001206516285352395896814025.
\frac{an_{45}\times 0.947001206516285352395896814025}{1-\left(\frac{1}{2}\right)^{2}}
Get the value of \cos(60) from trigonometric values table.
\frac{an_{45}\times 0.947001206516285352395896814025}{1-\frac{1}{4}}
Calculate \frac{1}{2} to the power of 2 and get \frac{1}{4}.
\frac{an_{45}\times 0.947001206516285352395896814025}{\frac{3}{4}}
Subtract \frac{1}{4} from 1 to get \frac{3}{4}.
\frac{an_{45}\times 0.947001206516285352395896814025\times 4}{3}
Divide an_{45}\times 0.947001206516285352395896814025 by \frac{3}{4} by multiplying an_{45}\times 0.947001206516285352395896814025 by the reciprocal of \frac{3}{4}.
\frac{an_{45}\times 3.7880048260651414095835872561}{3}
Multiply 0.947001206516285352395896814025 and 4 to get 3.7880048260651414095835872561.
an_{45}\times 1.2626682753550471365278624187
Divide an_{45}\times 3.7880048260651414095835872561 by 3 to get an_{45}\times 1.2626682753550471365278624187.