Kosinus e radiyan (DRG: DEG → RAD)

Hiisa ko $\displaystyle \cos \frac{\pi}{4}$ e radiyan. Ñoƴƴu laawol gootol ngam yaltude degre faade radiyan. Refti ñoƴƴu , , , , tappu 4, refti . Parantees ɗii ina mbaɗa feccere ndee fof wona lobbudu nduu. Ñoƴƴu : 0.707106781.

▶ Yi'ee ndee daawal e widewo (15:59)