shamikba wrote:
If \((x^4)(y) < 0\) and \((x)(y^4) > 0\) which of the following must be true?
A) x > y
B) y > x
C) x = y
D) x < 0
E) y > 0
\((x^4)(y) < 0\) , is negative.
The term\(x^4\) , because raised to an even power, is positive.
So for the result to be negative,\(y\) MUST be negative.
That is, we have
\((x^4) (y) < 0\) ----->
\((+ term) (-) < 0\) (result is negative)
Next:\((x) (y^4) > 0\) is positive.
Now
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