Question Number 22103 by Parvez akhter last updated on 11/Oct/17
$$\mathrm{cos}\overset{} {\left(}\:\mathrm{15}\right) \\ $$
Commented by Joel577 last updated on 11/Oct/17
$$\mathrm{15}\:{degree}\:{or}\:\mathrm{15}\:{radian}\:? \\ $$
Commented by $@ty@m last updated on 11/Oct/17
$${if}\:{nothing}\:{is}\:{metioned}, \\ $$$${it}\:{is}\:{assumed}\:{to}\:{be}\:{in}\:{radians}. \\ $$
Answered by $@ty@m last updated on 11/Oct/17
