Come risolvi # S = 2pirh + 2pir ^ 2 # per # h #?
Risposta:
#h=(S-2pir^2)/(2pir)#
Spiegazione:
#"isolate the term containing h"#
#rArr2pirh=S-2pir^2#
#"divide both sides by "2pir#
#(cancel(2pir) h)/cancel(2pir)=(S-2pir^2)/(2pir)#
#rArrh=(S-2pir^2)/(2pir)#