<prompt> Umusho 1: Ukuze uthole umsebenzi olinganisekayo onqunyiwe ifomula 18, ifomula 19 iyinombolo ephakathi nendawo enefomula engahleliwe engu-20 kanye nefomula yokwehluka engu-21. Umusho 2: Ukuze uthole umsebenzi olinganisekayo ongaguquguquki formula _ 18, formula _ 19 iyinombolo ephakathi nendawo enefomula engahleliwe _ 20 kanye nefomula yokwehluka _ 21. Umbuzo: Ingabe umusho 1 nomusho 2 usho into efanayo? Yebo noma Cha?  <response>: Yebo Yebo 