Write the Word or Phrase That Best Completes Each Statement $$\sec \left( \frac { \pi } { 2 } + u \right) = - \csc u$$

question 124

Essay

Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
- $$\sec \left( \frac { \pi } { 2 } + u \right) = - \csc u$$

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Definitions:

External Locus

The belief that one's successes or failures result from external factors beyond their control, contrasted with an internal locus of control.

Optimist

A person inclined to anticipate the best possible outcome, maintaining a hopeful and positive outlook on life and future events.

Pessimist

An individual who tends to see the worst aspect of things or believe that the worst will happen.

Reactivity

The tendency of individuals to change their behavior in response to being observed or knowing they are being studied.