Question

Un+1=2Un-1, where u2=0, calculate u1, u3 and u4​

Answer 1

Step-by-step explanation:

Un+1 = 2Un-1

if n=1

U2 =2U1-1

where U2=0

0 = 2U1-1

U1 =1/2

if n=2

U3 = 2U1 -1

U3 = 0

if n= 3

U4 = 2U3-1

U4 = 2(0) -1

U4 = -1