Question

(i) If x + 1/x
= 2, find x³ +x³​

Answer 1

Answer:

Answer is 2.

Step-by-step explanation:

x + 1/x = 2.

Now let do the LCM,,

x^2+1=2x

; x^2-2x+1=0.

; x^2-x-x+1 = 0.

; x(x-1) -1(x-1) = 0.

; (x-1)(x-1) = 0.

either,,,,

x-1=0.

; x=1.

Let's find the value of ,,,

x^3+x^3

; (1)^3+(1)^2

;1+1

;2