Explain profit maximization of a firm under TR-TC approach and mr-mc approach?

Profit maximization occurs when a firm achieves the highest possible profit by balancing total revenue (TR) and total cost (TC). Under the TR-TC approach, a firm maximizes profit by producing the quantity where the difference between TR and TC is greatest. In the MR-MC approach, profit maximization occurs where marginal revenue (MR) equals marginal cost (MC); producing beyond this point would result in higher costs than revenues. Both approaches lead to the same optimal output level but use different methods to arrive at that conclusion.