Use a Sum or Difference Identity to Find the Exact $$\frac { \tan 65 ^ { \circ } + \tan 85 ^ { \circ } } { 1 - \tan 65 ^ { \circ } \tan 85 ^ { \circ } }$$

question 94

Multiple Choice

Use a sum or difference identity to find the exact value.
- $$\frac { \tan 65 ^ { \circ } + \tan 85 ^ { \circ } } { 1 - \tan 65 ^ { \circ } \tan 85 ^ { \circ } }$$

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

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Definitions:

Indifference Curves

Indifference curves are graphical representations used in microeconomics to show combinations of two goods that provide the consumer with the same level of satisfaction or utility.

Budget Constraint

The limitations on household consumption based on income and the prices of goods and services.

Utility Function

A mathematical representation of how a consumer derives satisfaction from consuming different quantities of goods and services.

Optimum Point

The most advantageous position or condition that can be achieved in a given circumstance or under certain parameters.