Establish the Identity $$1 + \sec ^ { 2 } x \sin ^ { 2 } x = \sec ^ { 2 } x$$

question 294

Essay

Establish the identity.
- $$1 + \sec ^ { 2 } x \sin ^ { 2 } x = \sec ^ { 2 } x$$

---

Definitions:

1920s

A decade characterized by major economic growth, cultural and social changes, and advancements in technology and entertainment, often referred to as the "Roaring Twenties."

Russian Revolution

A series of political and social revolutions in Russia in the early 20th century that dismantled the Tsarist autocracy and led to the rise of the Soviet Union.

Armenian Genocide

The systematic mass killing and expulsion of ethnic Armenians by the Ottoman Empire during World War I.

American Attitude

The collective mindset or cultural outlook of the American people, which can vary widely on issues ranging from politics to social values.