Use a Sum or Difference Identity to Find the Exact $$\frac { \tan 155 ^ { \circ } - \tan 35 ^ { \circ } } { 1 + \tan 155 ^ { \circ } \tan 35 ^ { \circ } }$$

question 321

Multiple Choice

Use a sum or difference identity to find the exact value.
- $$\frac { \tan 155 ^ { \circ } - \tan 35 ^ { \circ } } { 1 + \tan 155 ^ { \circ } \tan 35 ^ { \circ } }$$

• A) \(- \frac { 1 } { 2 }\)
• B) \(- \frac { \sqrt { 3 } } { 3 }\)
• C) \(- \sqrt { 3 }\)
• D) \(- 2\)

---

Definitions:

Tangibility

The characteristic of being perceivable by touch or having a physical presence.

Service Delivery Process

A set of activities and tasks that a company undertakes to provide a service to its customers efficiently and effectively.

Service Encounter

The interaction between a customer and a service provider during which a service is provided.

Service Quality

The assessment of how well a delivered service matches customers' expectations.