Solve for N
N=379.02929423583040092
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N - {(40 \cdot 9.81 \cdot 0.9659258262890683)} = 0
Evaluate trigonometric functions in the problem
N-392.4\times 0.9659258262890683=0
Multiply 40 and 9.81 to get 392.4.
N-379.02929423583040092=0
Multiply 392.4 and 0.9659258262890683 to get 379.02929423583040092.
N=379.02929423583040092
Add 379.02929423583040092 to both sides. Anything plus zero gives itself.
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