Odpowiedzi

2009-09-05T14:28:33+02:00
A)5/√2=5√2/2

b) 5/√2+1 =5(√2-1)
2009-09-05T14:29:21+02:00
2009-09-05T14:33:58+02:00
A)5/√2= (5*√2)/(√2*√2)=5√2/2

b)5/√2+1=[5*(√2-1)]/[(√2+1)* (√2-1)] = (5√2-5)/1=5(√2-1)