Differentiate w.r.t. n
128n
Evaluate
64n^{2}
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2\times 64n^{2-1}
The derivative of ax^{n} is nax^{n-1}.
128n^{2-1}
Multiply 2 times 64.
128n^{1}
Subtract 1 from 2.
128n
For any term t, t^{1}=t.
Examples
Quadratic equation
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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