RDP 2015-10: The Life of Australian Banknotes Equation (3)

l ( t ) = d L ( t ) d t . MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiBamaabm aabaGaamiDaaGaayjkaiaawMcaaiabg2da9maalaaabaGaamizaiaa dYeadaqadaqaaiaadshaaiaawIcacaGLPaaaaeaacaWGKbGaamiDaa aacaGGUaaaaa@414F@