Find the Exact Value of the Expression $$\frac { \tan 175 ^ { \circ } - \tan 55 ^ { \circ } } { 1 + \tan 175 ^ { \circ } \tan 55 ^ { \circ } }$$

question 90

Multiple Choice

Find the exact value of the expression.
- $$\frac { \tan 175 ^ { \circ } - \tan 55 ^ { \circ } } { 1 + \tan 175 ^ { \circ } \tan 55 ^ { \circ } }$$

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

---

Definitions:

Standard Deviation

A metric for gauging the extent of fluctuation or scatter in a sequence of values.

Type II Error

A statistical error that occurs when a researcher fails to reject a false null hypothesis, missing an actual effect.

Type I Error

The error that occurs when a true null hypothesis is incorrectly rejected.

Control Limits

The boundaries in a control chart that represent the acceptable range of variation in a process.