2007
Mathematics
67ca00ce0c643c71d77dee1f
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
Correct Answer: 3/4
Explanation
x⊕y = xy + x + y = -3/4 (6) + (-3/4) + 6 = -9/2 - 3/4 + 6 = (-18-3+3+24) / 4 = 3/4
x⊕y = xy + x + y = -3/4 (6) + (-3/4) + 6 = -9/2 - 3/4 + 6 = (-18-3+3+24) / 4 = 3/4THIS WEEK's
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