Verify the Identity $\sec ( - x ) - \tan ( - x ) = \sec x + \tan x$

question 88

Essay

Verify the identity. $\sec ( - x ) - \tan ( - x ) = \sec x + \tan x$

---

Definitions:

Observational Learning

The process of learning behaviors by watching and imitating others, also known as modeling or social learning.

Headstands

An inversion exercise where one balances on their head with the feet pointing upwards; often practiced in yoga.

Vicarious Reinforcement

Learning that occurs by observing the reinforcement or punishment of another person's behavior.

Good Behavior Tokens

A system used to reinforce positive behavior, where individuals earn tokens for demonstrating desirable actions that can later be exchanged for rewards.