1.

Find the constants `a,b,c` and `d`, respectively, if `(1)/(x^(4)-x)=(a)/(x)+(b)/(x-1)+(cx+d)/(x^(2)+x+1)`.A. `-1,(1)/(3),(-1)/(2),(-5)/(6)`B. `-1,(1)/(3),(-1)/(2),(5)/(6)`C. `1,(1)/(3),(1)/(2),(5)/(6)`D. None of these

Answer» `(i)` Simplify L.H.S and R.H.s
`(ii)` Put `x=0` and `1` and obtain the values of `a` and `b`.
`(iii)` Compare the like terms and obtain the values of `c` and `d`.


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