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A binary operation ⊕ on real numbers is defined by x⊕y = xy + x...

Mathematics
JAMB 2007
A binary operation ⊕ on real numbers is defined by x⊕y = xy + x + y for any two real numbers x and y. The value of (-3/4)⊕6 is
  • A. 3/4
  • B. -9/2
  • C. 45/4
  • D. -3/4
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Correct Answer: Option A
Explanation
x⊕y = xy + x + y
= -3/4 (6) + (-3/4) + 6
= -9/2 - 3/4 + 6
= (-18-3+3+24) / 4
= 3/4

There is an explanation video available below.

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Explanation Video

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