Mathematics → GRE Mathematics → GRE Mathematics Subject Test Sample Paper
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6. Which from the following sets is NOT closed under multiplication?
(A) Set of Integers
(B) Set of Real Numbers
(C) Set of Natural Numbers
(D) {0}
(E) All are closed
7. For a function f at point 7 to be continuous, which from the following must true?
I. f (7) is defined
II. 
III. 
(A) I only
(B) III only
(C) I and III only
(D) II and III only
(E) I, II and III
8. If
for all positive x, then F ’(x) = ?
(A) 2x
(B) 2x4
(C) 2xex4
(D) 2xe–x4
(E) None of these
9. For what value of ‘A’ the function
is continuous?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
10. If G is a group of order 12, then G must have a subgroup of all of the following orders except?
(A) 2
(B) 3
(C) 4
(D) 6
(E) 12
ANSWERS: GRE MATHEMATICS SUBJECT TEST SAMPLE PAPER
6. E
7. E
8. D
9. B
10. C