Questions: When x, y, and z are positive integers, which of the following relationships will assure that the product x^0 y^1 z^-1 will have a value greater than 1 ?
A. x<y
B. x>y
C. x>z
D. y<z
E. y>z
Transcript text: 43. When $x, y$, and $z$ are positive integers, which of the following relationships will assure that the product $x^{0} y^{1} z^{-1}$ will have a value greater than 1 ?
A. $xy$
C. $x>z$
D. $yz$
Solution
Solution Steps
To determine which relationship will assure that the product x0y1z−1 will have a value greater than 1, we need to simplify the expression and analyze the conditions under which it holds true.
Simplify the expression x0y1z−1 to zy.
Determine the condition under which zy>1.
Solution Approach
Simplify the expression x0y1z−1 to zy.
The product zy will be greater than 1 if y>z.
Step 1: Simplify the Expression
Given the expression x0y1z−1, we can simplify it as follows:
x0y1z−1=1⋅y⋅z1=zy
Step 2: Determine the Condition
We need to find the condition under which the product zy is greater than 1. This can be expressed mathematically as:
zy>1
Step 3: Solve the Inequality
To solve the inequality zy>1, we multiply both sides by z (assuming z>0 since z is a positive integer):
y>z