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If(1 -x +6 x ^ 2 ) /(x - x ^ 3 )= (A)/(x)+(B)/( 1 - x )+ (C )/(1 +x ) ,then Ais equal to |
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Answer» ` 1 ` ` rArr1- x+6x ^ 2= A (1 - x ^ 2 )+ Bx ( 1 + x ) + Cx( 1 - x ) … (1) ` Substituting`x = 0 `in equation(1) ` I =A(-0 )+ B(0) +C(0) ` ` RARR A = 1` |
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