If Z is not equal to 0 and Z + (1 – 2Z^2)/Z = W/Z, then W =
A. Z + 1
B. Z^2 + 1
C. –Z^2 + 1
D. –Z^2 + Z + 1
E. – 2Z^2 + 1
C
OG: If Z is not equal to 0 and Z + (1 – 2Z^2)/Z = W/Z, then W =
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C
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E
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So we have Z + (1 – 2Z^2)/Z = W/ZAbeNeedsAnswers wrote: ↑Fri Jun 05, 2020 6:21 pmIf Z is not equal to 0 and Z + (1 – 2Z^2)/Z = W/Z, then W =
A. Z + 1
B. Z^2 + 1
C. –Z^2 + 1
D. –Z^2 + Z + 1
E. – 2Z^2 + 1
C
Since we want the value of W, we must get rid of Z from W/Z. To do that let's multiply the equation by Z.
So, we get Z*[Z + (1 – 2Z^2)/Z] = Z*[W/Z]
Z^2 + (1 – 2Z^2) = W
X = 1 – Z^2
The correct answer: C
Hope this helps!
-Jay
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Given: z + (1 - 2z²)/z = w/zAbeNeedsAnswers wrote: ↑Fri Jun 05, 2020 6:21 pmIf Z is not equal to 0 and Z + (1 – 2Z^2)/Z = W/Z, then W =
A. Z + 1
B. Z^2 + 1
C. –Z^2 + 1
D. –Z^2 + Z + 1
E. – 2Z^2 + 1
C
Eliminate the fractions, multiply both sides of the equation by z to get: z² + (1 - 2z²) = w
Simplify to get: 1 - z² = w
Rewrite as: -z² + 1= w
Answer: C
Cheers,
Brent
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Solution:AbeNeedsAnswers wrote: ↑Fri Jun 05, 2020 6:21 pmIf Z is not equal to 0 and Z + (1 – 2Z^2)/Z = W/Z, then W =
A. Z + 1
B. Z^2 + 1
C. –Z^2 + 1
D. –Z^2 + Z + 1
E. – 2Z^2 + 1
C
Simplifying, we have:
Z + 1/Z - 2Z = W/Z
-Z + 1/Z = W/Z
Multiplying both sides by Z (which we can do since Z ≠ 0), we have:
-Z^2 + 1 = W
Answer: C
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