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15 Oct 2019, 07:07
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If 0 < m < 1, which of the following expressions has the least value?
(A) m
(B) m^2
(C) m^3
(D) 2 - m
(E) (m + 1)^2
(A) m
(B) m^2
(C) m^3
(D) 2 - m
(E) (m + 1)^2
15 Oct 2019, 07:54
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Bunuel
If 0 < m < 1, which of the following expressions has the least value?
(A) m
(B) m^2
(C) m^3
(D) 2 - m
(E) (m + 1)^2
(A) m
(B) m^2
(C) m^3
(D) 2 - m
(E) (m + 1)^2
Let m = 1/2
Now, check the options -
(A) 1/2
(B) 1/4
(C) 1/8
(D) 3/2
(E) 9/2
Thus, answer must be (C)
15 Oct 2019, 08:14
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Try m = 0.1 for easy calculation to determine which option has the least value.
(A) m = 0.1
(B) m^2 = 0.01
(C) m^3 = 0.001
(D) 2-m = 1.9
(E) (m+1)^2 = 1.1^2 >1
Final answer is (C)
(A) m = 0.1
(B) m^2 = 0.01
(C) m^3 = 0.001
(D) 2-m = 1.9
(E) (m+1)^2 = 1.1^2 >1
Final answer is (C)
