$\"\"$

Marginal revenue function $\"\"$ is defined as derivative of the revenue function $\"\"$ , where $\"\"$ is number of units sold.

Integral is $\"\"$ .

Net change theorem: $\"\"$ .

$\"\"$ .

$\"\"$ represents change in revenue when production increased from $\"\"$ to $\"\"$ units.

$\"\"$

$\"\"$ represents change in revenue when production increased from $\"\"$ to $\"\"$ units.