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9 \cdot 0.6427876096865393 + 8 \cdot 0.766044443118978 = 0
Evaluate trigonometric functions in the problem
5.7850884871788537+8\times 0.766044443118978=0
Multiply 9 and 0.6427876096865393 to get 5.7850884871788537.
5.7850884871788537+6.128355544951824=0
Multiply 8 and 0.766044443118978 to get 6.128355544951824.
11.9134440321306777=0
Add 5.7850884871788537 and 6.128355544951824 to get 11.9134440321306777.
\text{false}
Compare 11.9134440321306777 and 0.
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