1.

If (kx)/((x+2)(x-1))=(2(x-1)+1(x+2))/((x+2)(x-1)) =(3x)/(x+2)(x-1) implies kx=3ximpliesk=3

Answer»

`-1/2`
`-2/3`
`1/2`
`2/3`

ANSWER :A


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