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05 Jul 2018, 01:48
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A
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Difficulty:
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86% (00:32) correct
14%
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wrong
based on 705
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Of the following, which is greatest?
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
05 Jul 2018, 02:13
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Bunuel
Of the following, which is greatest?
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
Hi...
When there is a negative power, the numerator and denominator interchange and power becomes positive..
A. \((\frac{1}{5})^{(−2)}=5^3=25\)
B. \((\frac{1}{3})^{(−2)}=3^2=9\)
C. \(3^{(−2)}=(1/3)^2=1/9\)
D. \(5^{(−2)}=(1/5)^2=1/25\)
E. \(2^3=8\)
Ans A
General Discussion
05 Jul 2018, 02:33
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Ans: A
C and D are out of the picture because they will give fraction of 1/n; so it can not be the greatest.
Out of A=25, B=9 and E=8, A is the highest for A= 25.
C and D are out of the picture because they will give fraction of 1/n; so it can not be the greatest.
Out of A=25, B=9 and E=8, A is the highest for A= 25.
Bunuel
Of the following, which is greatest?
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
A. \((\frac{1}{5})^{(−2)}\)
B. \((\frac{1}{3})^{(−2)}\)
C. \(3^{(−2)}\)
D. \(5^{(−2)}\)
E. \(2^3\)
