Use a Calculator to Find an Approximate Value of Each $\cos ^ { - 1 } ( 0.34567 )$

question 6

Short Answer

Use a calculator to find an approximate value of each expression correct to five decimal places, if it is defined.
(a)
$\cos ^ { - 1 } ( 0.34567 )$
(b)
$\sin ^ { - 1 } ( - 0.34567 )$
(c)
$\tan ^ { - 1 } ( 0.34567 )$

---

Definitions:

Neolithic Settlement

Ancient communities formed during the Neolithic period, marked by the beginnings of agriculture, the domestication of animals, and the development of permanent villages.

Jordan River Valley

A geographical area in the Middle East that serves as a significant water source and historical region.

Central Mexico

A region in the heart of Mexico characterized by its rich history, cultural significance, and geographical features, including the Mexican Plateau and surrounding mountain ranges.

Costa Rica

A country in Central America known for its rich biodiversity, environmental protection efforts, and high standard of living.