Question

If (a + 1/a) = 2 and a + 0; then find the value of a3 +​

Answer 1

Answer:

Step-by-step explanation:

a+a²+a³-1=0

a³+a²+a=1 ———————————(1)

Taking a common

a(a²+a+1)=1

a²+a+1=1/a ——————————(2)

Now a³+1/a=??

From equation 2 put the value of 1/a in above equation

So it becomes

a³+a²+a+1

Now put the value of a³+a²+a from equation so

1+1

=2