Use a Sum or Difference Identity to Find the Exact $$\cos 9 ^ { \circ } - \cos 33 ^ { \circ }$$

question 265

Multiple Choice

Use a sum or difference identity to find the exact value.
- $$\cos 9 ^ { \circ } - \cos 33 ^ { \circ }$$

• A) \(- 2 \sin 21 ^ { \circ } \cos \left( - 12 ^ { \circ } \right)\)
• B) \(- 2 \cos 21 ^ { \circ } \sin \left( - 12 ^ { \circ } \right)\)
• C) \(- 2 \cos 21 ^ { \circ } \cos \left( - 12 ^ { \circ } \right)\)
• D) \(- 2 \sin 21 ^ { \circ } \sin \left( - 12 ^ { \circ } \right)\)

---

Definitions:

Insurance Contract

A legally binding agreement between an insurance company and the policyholder, specifying the terms for the payment of insurance benefits.

Insuring Property

The act of purchasing insurance to protect against loss or damage to property due to hazards like fire, flood, or theft.

Transferring Risk

Transferring risk involves moving potential financial loss from one party to another, commonly through insurance policies or hedging strategies.

Allocating Risk

The process of identifying and distributing the potential financial, operational, or legal hazards among parties in a transaction or agreement.