Solve w=k/m - ScanMath

Simplify

w = \frac{k}{m}

Find the first partial derivative by treating the variable m as a constant and differentiating with respect to k

\frac{\partial w}{\partial k} = \frac{\partial}{\partial k} (\frac{k}{m})

Use differentiation rule \frac{\partial}{\partial x} (\frac{f ( x )}{g ( x )}) = \frac{\frac{\partial}{\partial x} ( f ( x )) \times g ( x ) - f ( x ) \times \frac{\partial}{\partial x} ( g ( x ) )}{( g ( x ) ) ^{2}}

\frac{\partial w}{\partial k} = \frac{\frac{\partial}{\partial k} ( k ) m - k \times \frac{\partial}{\partial k} ( m )}{m ^{2}}

Use \frac{\partial}{\partial x} x^{n} = n x^{n - 1} to find derivative

\frac{\partial w}{\partial k} = \frac{1 \times m - k \times \frac{\partial}{\partial k} ( m )}{m ^{2}}

Use \frac{\partial}{\partial x} (c) = 0 to find derivative

\frac{\partial w}{\partial k} = \frac{1 \times m - k \times 0}{m ^{2}}

Any expression multiplied by 1 remains the same

\frac{\partial w}{\partial k} = \frac{m - k \times 0}{m ^{2}}

Any expression multiplied by 0 equals 0

\frac{\partial w}{\partial k} = \frac{m - 0}{m ^{2}}

Removing 0 doesn't change the value,so remove it from the expression

\frac{\partial w}{\partial k} = \frac{m}{m ^{2}}

Solution

More Steps

\frac{\partial w}{\partial k} = \frac{1}{m}

Function