Consider the function f(x) = \tan(x) , and remember that \tan(x) = \displaystyle{\frac{\sin(x)}{\cos(x)}} .

(a) What is the domain of

**A**. All real numbers except **R**. All real numbers**B**. All real numbers except zero**C**. All real numbers except **D**. All positive real numbers.**E**. None of these

(b) Andre computes

**A**. **B**. **C**. **D**. **E**. **F**. None of these

(c) Berenice simplifies Andre's correct answer using the Fundamental Trigonometric Identity. Which of the following is a correct answer?

**A**. **B**. **C**. **D**. **E**. **F**. None of these

(d) Corey simplifies Berenice's correct answer using another trigonometric Identity. Which of the following is a correct answer?

**A**. **B**. **C**. **D**. **E**. **F**. **G**. None of these

(e) For what values of

**A**. All real numbers except **R**. All real numbers**B**. All real numbers except zero**C**. All real numbers except **D**. All positive real numbers.**E**. None of these

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