Question Detail
Question
Simplify (csc y + cot y)(csc y - cot y)/csc y
Correct Answer
Option B is the correct answer.
Detailed Explanation
(csc y + cot y)(csc y - cot y) = csc²y - cot²y = 1 (since csc²y = 1 + cot²y). Then divided by csc y gives 1/csc y = sin y.
Hint
Use the difference of squares formula and trigonometric identities.