Cluster · Algebraic Expressions with Reciprocals

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Clusters / #1152
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Algebraic Expressions x Plus 1/x Powers
Questions
292
Questions in this cluster
290 total
Question Category Subtype Difficulty

If (x + \(\frac{1}{x}\)) = 7.5, what is the value of (\(x^2+\frac{1}{x^2 }\))?

pipeline-305751
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If x + \(\frac{1}{x}\), = 10 then find the value of \(\frac{7x}{x^2+1-8x}\)

pipeline-419439
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If \(16x^4 +{{1} \over 16x^4}=14159,\)   then find the value of\(2x +{{1} \over 2x}.\)

pipeline-665962
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If \(\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}=7\), What is the value of \(\dfrac{x^3}{y^3}+\dfrac{y^3}{x^3}\) is:

pipeline-286325
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If (x - 1/x) = 7/3, what is the value of (x3 - 1/x3)

pipeline-345411
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If \(a^2+b^2+\frac{1}{a^2}+\frac{1}{b^2}=4,a\neq0,b\neq0,\) then the value of a4 + b4 is:

pipeline-419447
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If x + \(\frac{1}{x}\) = -13, what is the value of x4 + \(\frac{1}{x^4}\)?

pipeline-305748
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If \(x +{{1} \over x}=2,\) then find the value of \((x^4 +{{4} \over (x)^4})(x^3- {{4} \over x^3}).\)

pipeline-665978
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If p4 = 4354 - \(\frac{1}{p^4}\)then the value of p3 - \(\frac{1}{p^3}\)can be:

pipeline-307106
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If \(a^2-4a+1=0\), then the value of \(a^2+a+\dfrac{1}{a}+\dfrac{1}{a^2}\) is:

pipeline-290769
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If \((x -{1 \over x})=7.5\), what is the value of \((x^2 +{1 \over x^2})?\)

pipeline-422374
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If \( (5y+\frac{5}{y})=11\), then find the value of\(\,(y^2+\frac{1}{y^2})\).

pipeline-544881
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If x > 0, and x4 + \({{1} \over x^4}\)= 2207, what is the value of x7 + \({1 \over x^7}\) ?

pipeline-387914
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If \(x = {\sqrt{5} -2\over \sqrt{5} +2}\), then the value of x2 + x-2 is :

pipeline-387908
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If x + 1/x = 4, then find the value of x5 + x-5.

pipeline-387052
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If K + 1/K = 3, then what is the value of K+ 1/K3?

pipeline-388078
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Simplify  \({{x^2+2x+y^2} \over x^3-5x^2 }\)   if  \(x+{{y^2} \over x}=5\)

pipeline-387606
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If x + \({1 \over x} = 8\), then find the value of 5/(x- 8x +2)

pipeline-388070
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If x > 0 and \(x^4+\frac{1}{x^4}=142\), what is the value of \(x^7+\frac{1}{x^7}\)?

pipeline-544866
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k is a negative number such that k + k-1 = - 2, then what is the value of (k2 + 4k - 2)/(k2 + k - 5) ?

pipeline-387051
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If x2 + \(\frac{1}{x^2}\)= 18, x > 0, then find the vale of x3 + \(\frac{1}{x^3}\).

pipeline-303944
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If  \({{x=3+2\sqrt2,}}\)   x > 0, then the value of \(\sqrt x-{{1} \over \sqrt x}\) is :

pipeline-388742
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If \(X-{{1} \over X}=13\),  what will be the value of \(X^4+{{1} \over X^4}=?\) 

pipeline-396047
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If x + (1/x) = -14, and x < -1, what is the value of x2 - (1/x2)?

pipeline-389910
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What is the value of:

\((k-\frac{1}{k})(k^2+\frac{1}{k^2})(k^4+\frac{1}{k^4})(k^8+\frac{1}{k^{8}})(k^{16}+\frac{1}{k^{16}})(k^{32}+\frac{1}{k^{32}})\)

pipeline-392309
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If \(x^2 + \frac{1}{x^2}\)= 7, and 0 < x < 1, then find the value of \(x^2 - \frac{1}{x^2}\).

pipeline-534809
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If mx- nxn = 0, then the value of \({{1} \over x^m+x^n}\) + \({{1} \over x^m-x^n}\) in terms of xn is : 

Where x, m, n are > 0.

pipeline-392067
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If k4 + (1/k4) = 47, then what is the value of k3 + (1/k3) ?

pipeline-389954
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If x + \(\frac{2}{x}=1\), then the value of \(\frac{x^2+7x+2}{x^2+13x+2}\) is:

pipeline-606859
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If \(p = 7+4\sqrt3,\) then what is the value of \({{p^6+p^4+p^2+1} \over p^3}\) ?

pipeline-393119
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If 7b - (1/4b) = 7, then what is the value of 16b2 + (1/49b2) ?

pipeline-534324
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If \((4a+{{5} \over a}+5)=14\),  what is the value of \((16a^2+{{25} \over a^2})\)?

pipeline-396042
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If \(x+{{1} \over x}=1\), then the value of x12 + x9 + x6 + x3 + 1 is _______

pipeline-392311
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If (x + \(\frac{1}{x}\)) = 7 and x > 1, what is the value of (x³ + \(\frac{1}{x^3}\))?

pipeline-607698
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If \(x+{{1} \over x}=2\)cosθ, then  \(x^3+{{1} \over x^3}=?\)

pipeline-388733
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If, for a non zero x, 5x2 + 7x + 5 =0, then the value of \(x^3 + { {1} \over x^3}\) is:

pipeline-392071
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The simplified form of (x + 2y)3 + (x - 2y)3 is :

pipeline-389979
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If \(X+{{1} \over X}=-2,\) then what is the value of X17 +X-17 + X12 + X-12  ? (x<0)

pipeline-388823
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If \(x + {{1} \over x}\)= 2, then the value of  \(x^{57} + {{1} \over x^{57}}\) is :

pipeline-392062
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Simplify [(81x2 – 49y2) ÷ (9x + 7y)].

pipeline-14815
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If a - \(\frac{1}{a}\) = 4, then the value of a + \(\frac{1}{a}\) is:

pipeline-577398
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Find the degree of the polynomial 9x+ 5x2y+ 4.

pipeline-31654
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Find (x + y)2 - (x - y)2.

pipeline-22294
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Simplify the given expression.

(1 + x)3 + (1 - x)3 + (-2)3

pipeline-574736
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If (x + 1/x) = 2, then find the value of (x+ 1/x3) ÷ (x18 + 1/x18).

pipeline-31624
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Given x + 1/x = 15, then find the value of 5x ÷ (5x- 11x + 5).

pipeline-31622
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Simplify the given expression.

(1 - x)2 - (1 + x)2

pipeline-577366
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If (x + \(\frac{1}{x}\)) = 5\(\sqrt2\), and x > 1, what is the value of (x6 - \(\frac{1}{x^6}\)) ?

pipeline-568705
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If \(x = \frac{1}{x-5}\) (x > 0),then the value of \(x + \frac1 x\) is :

pipeline-574666
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If \((y+\frac{1}{y}) = 8\), find the value of \((y^2+\frac{1}{y^2})\).

pipeline-578829
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