1.

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

Answer»

`(X+(a+B))/SQRT((a-x)(x-b))`
`(2X-a-b)/(2sqrt((a-x)(x-b))`
`((a+b))/(2sqrt((a-x)(x-b)))`
`(2x+(a+b))/(2sqrt((a-x)(x-b)))`

ANSWER :B


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