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Ch-4 question is ex-4.3 question no-3 |
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Answer» 2》1/x+4-1/x-7=11/30 x-7-x-4/x+4 (x-7)=11/30 -11/x^2-3x-28=11/30 -11 (30)/11 (x^2-3x-28) -30/x^2-3x-28 x^2-3x+2 x^2-x-2x+2 x (x-1)-2 (x-1) (x-2)(x-1)x=2x=1 1》x-1/x=3 x^2-1=3x x^2-3x-1D=b^2-4ac = (-3)^2-4 (1)(-1) =9+4 =13x=-b+root D/2a x=-b+rootD/2a =3+root13/2 =3-root13/2 If it is of. Ncert then ncert solutions is given in this app...... |
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