1.

Let f(x){:{(2x+a",",x ge -1),(bx^(2)+3,x lt -1):} and g(x)={:{(x+4",",0 le x le 4),(-3x-2,-2 lt x lt 0):} If the domain of g(f(x)) is [-1, 4], then

Answer»

`a =1, B GT 5`
`a=2, b gt 7`
`a=2, b gt 10`
`a=0, b in R`

Answer :D


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