x+1/x =3 ⅓....find value of x³-1/x³
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Answer:
1.343 or 1343/1000
Step-by-step explanation:
x+1 /x = 3 + 1/3
x+1 /x = 10/3
10(x+1) = 3x
10x +10 = 3x
7x + 10 = 0
x = -10/7
x^3 = (-10/7)^3 = -1000/343
therefore
x^3-1/x^3
= (-1000/343)-1/-1000/343
= (-1000 -343)/343/-1000/343
= -1343/-1000
= 1.343 or 1343/1000
Please mark it as brainliest if you understood
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