MATHEMATICS

JAMB 2007 - Question 16

Mathematics 2007 JAMB Past Questions - Question 16: A binary operation * on real numbers is defined by x*y=xy+x+y for any two real number xand y.The value of (-3/4)*6 is.

A binary operation * on real numbers is defined by x*y=xy+x+y for any two real number xand y.The value of (-3/4)*6 is.
A:
B:
C:
D:
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Correct Answer

A

Explanation

To find the value of (-3/4) * 6 using the binary operation *, we substitute the given values into the expression x * y = xy + x + y.Let's calculate (-3/4) * 6:(-3/4) * 6 = (-3/4)(6) + (-3/4) + 6Simplifying:= (-18/4) + (-3/4) + 6= -18/4 - 3/4 + 6= (-18 - 3 + 24)/4= 3/4Therefore, the value of (-3/4) * 6 using the binary operation * is 3/4.

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