0 0 votes The value of $\lim _{x \rightarrow 0}\left[\frac{\cos 2 x-\cos 4 x}{x^{2}}\right]$ is ___________. Calculus gatebt-2023 calculus numerical-answers + – admin 3.0k points answer comment Share Follow See 1 comment 1 1 comment reply Aparna 6143 360 points commented Feb 10, 2024 reply Follow flag How to solve it replyShare Please log in or register to add a comment.