Question

help in this urgent .................​

Answer 1

Answer:

Step-by-step explanation:

6.given x+1/x=3 then x^3+1/x^3=?

If x+1/x=k then the value of x^3+1/x^3 will be equal to (k) ^3 - 3k.

According to the question the answer will be (3) ^3 -(3×3)

= 27 -9

= 18