Without Using a Calculator, Give the Exact Trigonometric Function Value $\tan 45 ^ { \circ }$

question 141

Multiple Choice

Without using a calculator, give the exact trigonometric function value with rational denominator.
- $\tan 45 ^ { \circ }$

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

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