if A = P^Q what is the value of A if P = -1
(A) -1
(B) 1
(C) 0
(D) 2
(E) cannot be determined
The OA is the option E.
Is not -1 the value of A? Why not? Can someone clarify this for me? Thanks.
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if A = P^Q what is the value of A if
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Brent@GMATPrepNow
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Given: A = P^QM7MBA wrote:if A = P^Q what is the value of A if P = -1
(A) -1
(B) 1
(C) 0
(D) 2
(E) cannot be determined
Given: P = -1
Take A = P^Q and replace P with -1 to get: A = (-1 )^Q
So, the value of A depends on the value of Q.
Let's test some different values of Q.
If Q = 1, then A = (-1 )^1 = -1
If Q = 2, then A = (-1 )^2 = (-1)(-1) = 1
Since we can have two different values for A, the correct answer is E
Cheers,
Brent
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Jeff@TargetTestPrep
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If P = -1, we have:M7MBA wrote:if A = P^Q what is the value of A if P = -1
(A) -1
(B) 1
(C) 0
(D) 2
(E) cannot be determined
A = (-1)^Q
However, we cannot determine A.
If Q = 1, then A = -1; however, if Q = 2, then A = 1.
Answer: E
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