Question

x^3+1/3^3=15 then find x+1/x​

Answer 1

Answer:

3.83

Step-by-step explanation:

first of all we have to vale of x in the equation

so according to question we have

x^3+1/3^3=15

x^3=15-1/3^3

x^3=15-1/81

x^3=((15*81)-1)/81

x^3=(1215-1)/81

x^3=1214/81

x=10.67/3

now we got value of x now we can find out

x+1/x

10.67/3 +3/10.6=122.84/32.01=3.83

so the vale of x+1/x is 3.83