Determine Which of the Following Are Trigonometric Identities II III

question 85

Multiple Choice

Determine which of the following are trigonometric identities.
I. $\frac { \cos ( \mathrm { t } ) - \cos ( \mathrm { s } ) } { \sin ( \mathrm { t } ) + \sin ( \mathrm { s } ) } + \frac { \sin ( \mathrm { t } ) - \sin ( \mathrm { s } ) } { \cos ( \mathrm { t } ) + \cos ( \mathrm { s } ) } = 0$
II. $\frac { \cos ( \mathrm { t } ) + \cos ( \mathrm { s } ) } { \sin ( \mathrm { t } ) + \sin ( \mathrm { s } ) } + \frac { \sin ( \mathrm { t } ) + \sin ( \mathrm { s } ) } { \cos ( \mathrm { t } ) + \cos ( \mathrm { s } ) } = 1$
III. $\frac { \cos ( \mathrm { t } ) + \sin ( \mathrm { s } ) } { \cos ( \mathrm { t } ) \sin ( \mathrm { s } ) } = \cos ( \mathrm { s } ) + \sin ( \mathrm { t } )$

• A) I is the only identity.
• B) I, II, and III are identities.
• C) II is the only identity.
• D) II and II are the only identities.
• E) I and II are the only identities.

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Definitions:

Revolution

A fundamental and relatively sudden change in political power and political organization which occurs when the population revolts against the government, typically due to perceived oppression or dissatisfaction with the current leadership.

Civil Disobedience

The refusal to obey certain laws or governmental demands for the purpose of influencing legislation or government policy, characterized by the use of nonviolent techniques.

Evolution of the State

The historical development and transformation of state structures, from simple forms of governance to complex administrative and political systems.

Political Systems

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