Question

if (a+1/a)^2=9,then a^3+1/a^3 equals what​

Answer 1

Answer:1331

Step-by-step explanation:a square + 1/a square=9

a cube+1/a cube=?

(a+1/a) square=a square+1/a square+2

9+2=a+1/a

11=a+1/a

(a+1/a) cube=(11) cube

=1331