الدوال المثلثية Sin Cos Tan Sec Cosec (csc) Cot
d 60 Year and 3 Weeks and Day and 21 Hourقانون الجيب Sin Law
d 9 Months and 2 Weeks and 6 Days and 7 Hours and 49 Minuteقانون جيب التمام Cos Law
d 9 Months and 2 Weeks and 6 Days and 7 Hours and 34 Minute