Question

if x=4+√15 then find the value of x^3+1/x^3​

Answer 1

Step-by-step explanation:

x is 4+√15

so ,

x³+1/x³

(4+√15)³+1/(4+√15)³

487.9+1/487.9

(238094.2+1)/487.9

238095.2/487.9

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