Solved example of differential calculus
The derivative of a sum of two functions is the sum of the derivatives of each function
The derivative of the constant function ($1$) is equal to zero
$x+0=x$, where $x$ is any expression
The derivative of a function multiplied by a constant ($2$) is equal to the constant times the derivative of the function
The derivative of the linear function is equal to $1$
The derivative of the linear function times a constant, is equal to the constant
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