Prove the Identity $$\frac { 1 - \sin t } { \cos t } = \frac { \cos t } { 1 + \sin t }$$

question 82

Essay

Prove the identity.
- $$\frac { 1 - \sin t } { \cos t } = \frac { \cos t } { 1 + \sin t }$$

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Definitions:

Efficient Level

The point at which a system operates at maximum productivity with minimum waste and expense.

Marginal Cost

The additional cost incurred in producing one more unit of a good or service.

Willingness to Pay

The maximum amount an individual is prepared to spend for a good or service, reflecting the value they derive from it.

Opportunity Cost

The cost of foregoing the next best alternative when making a decision or choosing to allocate resources in a certain way.