1 votes 1 votes $\lim_{x\rightarrow 0}\frac{ \sin x^{\circ}}{x}$ Calculus calculus limits + – saket nandan asked Jul 10, 2015 retagged Aug 2, 2015 by Arjun saket nandan 402 views answer comment Share Follow See 1 comment See all 1 1 comment reply Arjun commented Jul 11, 2015 reply Follow Share degree? 1 votes 1 votes Please log in or register to add a comment.
Best answer 9 votes 9 votes $180^{\circ}=\pi $ then $1^{\circ}=\pi /180$ $\therefore x^{\circ}=\pi x/180$ $\lim_{x\rightarrow 0} \frac{ \sin(\pi x/180)}{(\pi x/180) (180/\pi )}=\pi /180$ saket nandan answered Jul 12, 2015 selected Jul 12, 2015 by Arjun saket nandan comment Share Follow See all 0 reply Please log in or register to add a comment.