Mathematics > 2005 > 21
JAMB UTME
An operation * is defined on the set of real numbers by a*b = ab + 2(a + b + 1). Find the identity element.
A.
2
B.
1
C.
-1
D.
-2
Answer: C
To see detailed solution to this question and thousands of other questions offline, download TestDriller UTME. Practice rigorously for UTME, enjoy educational games, summary of JAMB literature books, compete with your peers, win prizes and more.
09037778195