1 . y=tan-1 4x1-4x2

• A. $\frac{4}{1+4x^2}$
• B. $\frac{-4}{1-4x^2}$
• C. $\frac{4}{1-4x^2}$
• D. $\frac{1}{4x^2-1}$

Answer: Option A

Explanation: