Question

Let $f(x)=\begin{vmatrix}cosx &x& 1\\\ 2sinx &x& 2x \\\ sinx& x& x\end{vmatrix}$.Then $\lim\limits_{x \to 0}\frac{f(x)}{x^2}$=

• A. -1
• B. 0
• C. 3
• D. 2

Answer 1

Answer: (B)

0

Answer 2

The correct answer is Option (B) : 0