# If x+1/x=2 then evaluate x^3+1/x^3?

• If x+1/x=2 then evaluate x^3+1/x^3?

If x+1/x=2 then evaluate x^3+1/x^3? Find answers now! No. 1 Questions & Answers Place. More questions about Science & Mathematics
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x +1/x =2 can be solved for x Then put the value into x^3 +1/x^3 DO NOT assume you can just cube it.
Positive: 91 %

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evaluate the limit if it exists. lim x--> 1 (x^3-1)/(x^2 + 2x - 3) I started it and I got = x(x+1)(x-1)/ (x+3)(x-1) and you can cross out both (x-1) so you get
Positive: 94 %
... IF X- 1/X=3 + 2 ROOT 2, THEN FIND THE VALUE OF X 3 - 1/X 3. 0 Follow 0. ... (x) 3 - (1/x) 3 = (x-1/x)(x 2 +1/x 2 +1) = (3+ 2√2)(19+12√2+1) = (3+2 ...
Positive: 89 %
SOLUTIONS TO IMPLICIT DIFFERENTIATION PROBLEMS ... x - x 3-xy 2 = 0 , x (1 - x 2-y 2) = 0 , and ... remembering that y is an impicit function of x ...
Let $x_1,x_2,x_3$ be the roots of $x^3+3x+5=0.$ What is the value of the expression [math]\left(x_1+ \frac{1}{x_1} \right) \left(x_2 ...