Question Detail
Question
Find \( f'(0) \) for \( f(x) = 1 - 2\sin x \).
Correct Answer
Option A is the correct answer.
Detailed Explanation
( f'(x) = -2\cos x ). At 0, ( -2\cos 0 = -2(1) = -2 ).
Hint
The derivative of sine is cosine.