Question

x+1/X=7 , find the value of x^3+1/x^3​

Answer 1

Answer:

217

Step-by-step explanation:

x+1/x = 7

Therefore X+1=7x

1=7x-x

1/6 = X

x³+1/x³ :

(1/6)³ + 1 / (1/6)³

1/216 + 1 / (1/216)

(217/216) / (1/216)

217(Ans)