Solve for N
N=27.8679412540286058
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1.3270448216204098 = \frac{N}{21}
Evaluate trigonometric functions in the problem
1.3270448216204098\times 21=N
Multiply both sides by 21.
27.8679412540286058=N
Multiply 1.3270448216204098 and 21 to get 27.8679412540286058.
N=27.8679412540286058
Swap sides so that all variable terms are on the left hand side.
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