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JAMB - Mathematics (2009 - No. 18)

If m * n = n - (m+2) for any real number m and n find the value of 3*(-5)?
-6
-8
-10
-12

स्पष्टीकरण

m * n = n - (m+2)
= -5 - (3+2)
= -5-5
= -10

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