Question

\( \frac{1 + \cos A}{1 - \cos A} \) is equal to:

• A. \( \csc A - \cot A \)
• B. \( \csc A + \cot A \)
• C. \( \csc A \cdot \cot A \)
• D. \( \sin A \cdot \tan A \)

Hint:

Memorizing standard trigonometric formulas helps in quick solving.

Answer 1

The Correct Option is B

Using trigonometric identity:
\[ \frac{1 + \cos A}{1 - \cos A} = \csc A + \cot A \] This can be derived by expressing in terms of sine.