if Y is equal to A + B by X where a, b for real numbers Y is equal to 1 when x is equal to -1 and Y is equal to 5 when y x is equal to minus 5 then a + b is equal to
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Step-by-step explanation:
Y=1
X=-1
Y=A+B/X
1=A+B/-1
-1=A+B ............1
A=B+1............2
putting the value of A in eq.. 1
A+B=-1
B+1+B=-1
2B=-1-1
B=-2/2
B=-1
eq... 2
A=B+1
A=-1+1
A=0
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