MATH

MATH

$s=0\qquad $gives $3=2B\qquad $gives $B=\dfrac{3}{2}$

$s=-2\qquad $gives $3=4C\qquad $gives $C=\dfrac{3}{4}$

$s=1\qquad $gives $3=3A+3B+C\qquad $gives $A=-\dfrac{3}{4}$

So MATH


MATH