CBSE

MATHEMATICS · Single correct · CBSE · Mathematics · Limits and Derivatives · Limits and Derivatives

Problem

Calculate

\displaystyle\lim_{x\to 0}\frac{1-\cos 3x}{x^{2}}

. (a)

9

(b)

\dfrac{1}{2}

(c)

\dfrac{9}{2}

(d)

0