Question

if (a+1/a )2 =9 then a3 + (1/a )a3​

Answer 1

muze nahi pata isaka answer

Step-by-step explanation:

sorry

Answer 2

Answer:

Step-by-step explanation:

(a+1/a)²=9

(a+1/a)=3. --(eq.1)

Then,

(a³+1/a³)=?

Now,

(a+b)³=a³+b³+3ab(a+b) [formula]

Apply this formula

(a+1/a)³= a³+1/a³+3a×1/a(a+1/a)

27=a³+1/a³+3×3. [From eq.1, (a+1/a)=3]

a³+1/a³+9=27

a³+1/a³=27-9

a³+1/a³=18. Ans.