Use an Addition or Subtraction Formula to Write $\frac { \tan 10 ^ { \circ } + \tan 20 ^ { \circ } } { 1 - \tan 10 ^ { \circ } \tan 20 ^ { \circ } }$

question 72

Essay

Use an addition or subtraction formula to write $\frac { \tan 10 ^ { \circ } + \tan 20 ^ { \circ } } { 1 - \tan 10 ^ { \circ } \tan 20 ^ { \circ } }$ and find its exact value.

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Definitions:

Fiscal Year-End

The end of a company's accounting year, when it completes its annual financial statements and reports.

Foreign Currency Units

Foreign currency units refer to the various national currencies in which international transactions are denominated and financial statements of foreign operations are reported.

Exchange Rates

The value of one currency for the purpose of conversion to another, affecting how international transactions are recorded.

British Pounds

Refers to the official currency of the United Kingdom, known for its symbol £ and its code GBP.