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