Question

if a + (1/a)= 1 , then a³+ 1= ?​

Answer 1

Answer:

a + (1/a)= 1

a^3/a^2+a/a^2=1

(a^3+a)/a^2=1

a^3+a+1=a^2+1

a^3+1=a^2-a+1