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5 \cdot -0.39233711660356146 = 1
Evaluate trigonometric functions in the problem
-1.9616855830178073=1
Multiply 5 and -0.39233711660356146 to get -1.9616855830178073.
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Compare -1.9616855830178073 and 1.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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