Question

If x² +(1/ x²) = 5, then what is the value of x^3 + (1/x^3)

Answer 1

Answer:

√3

Step-by-step explanation:

if x²+1/x² =5

then x-1/x =

(x-1/x)² = x²+1/x²- 2

(x-1/x)² = 5 - 2

(x-1/x)² = 3

Squaring on both sides

x-1/x = √3

Hope you understood this solution .