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

Question 294

Question 294

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) 1
C) $\frac { 1 } { 2 }$
D) $\sqrt { 2 }$

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