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If y=((a-x)sqrt(a-x)-(b-x)sqrt(x-b))/(...

If `y=((a-x)sqrt(a-x)-(b-x)sqrt(x-b))/((sqrt(a-x)+sqrt(x-b)) `,then `(dy)/(dx)` wherever it is defined is (a)`(x+(a+b))/(sqrt((a-x)(x-b)))` (b) `(2x-a-b)/(2sqrt(a-x)sqrt(x-b))` (c)`-((a+b))/(2sqrt((a-x)(x-b)))` (d) `(2x+(a+b))/(2sqrt((a-x)(x-b)))`

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if y=((a-x)sqrt(a-x)-(b-x)sqrt(x-b))/(sqrt(a-x)+sqrt(x-b)) then dy/dx wherever it is defined is equal to :

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