বৃত্তীয় মান নির্ণয় করি : -62°30'


\(∴ =-\left[62°+\left(\cfrac{30}{60}\right)^o\right]\)
\(=-\left[62°+ {\cfrac{1}{2}}^o\right]\)
\(={-\cfrac{124+1}{2}}^o\)
\(={-\cfrac{125}{2}}^o\)

\(∵180°=π^c\)
\(∴{-\cfrac{125}{2}}^o=-\cfrac{π^c}{180}×\cfrac{125}{2}={\cfrac{25π}{72}}^c\)

\(∴62° 30'={\cfrac{25π}{72}}^c\) (Answer)

Similar Questions