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40.25
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80.5\times \frac{1}{2}
Get the value of \sin(30) from trigonometric values table.
\frac{161}{4}
Multiply 80.5 and \frac{1}{2} to get \frac{161}{4}.
Examples
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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