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The table shows the operation * on the set {x, y, z, w}. * X...

Further Mathematics
WAEC 2023

The table shows the operation * on the set {x, y, z, w}.

* X Y Z W
X Y Z X W
Y Z W Y X
Z X Y Z W
W W X W Z

Find the identity of the element.

 

  • A. W
  • B. Y
  • C. Z
  • D. X
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Correct Answer: Option C
Explanation

From the table, x * z = x, y * z = y, z * z = z and w * z = w

∴ z is the identity element

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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free