Find the Exact Value of the Expression $\cos ^ { - 1 } ( 1 )$

question 194

Multiple Choice

Find the exact value of the expression.
- $\cos ^ { - 1 } ( 1 )$

• A) 0
• B) \(\pi\)
• C) \(\frac { \pi } { 2 }\)
• D) \(- \pi\)

---

Definitions:

Wax

Water-repellent substance that is a complex, varying mixture of lipids with long fatty acid tails bonded to long-chain alcohols.

Vascular Tissue

Specialized tissue in plants that conducts water and nutrients through the plant body.

Monocots

A major group of flowering plants (angiosperms) characterized by having one seed leaf (cotyledon), such as grasses, lilies, and palms.

Cotyledon

Seed leaf of a flowering plant embryo.