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If the binary operation * on the set of integers Z, is defined by $a*b=( a+3b^2)$ then find the value of $2*4$

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  • An element $e \in N $ is an identify element for operation * if $a \ast e=e \ast a$ for all $a \in N$
The binary operation $*$ is defined by $a*b=a+3b^2$
$\therefore 2*4=2+3(4)^2$
answered Sep 23, 2013 by sreemathi.v

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