Question Detail
Question
Find the first derivative of sec⁻¹(2x) with respect to x
Correct Answer
Option B is the correct answer.
Detailed Explanation
d/dx[sec⁻¹u]=1/(u√(u²-1))·u'. With u=2x, u'=2: (1/(2x√(4x²-1)))·2 = 1/(x√(4x²-1)).
Hint
Apply the chain rule to the standard derivative of sec⁻¹u with u=2x.