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if y=((a-x)sqrt(a-x)-(b-x)sqrt(x-b))/(sq...

`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))/(sqrt((a-x)(x-b)))`

C

`(2x-(a+b))/(sqrt((a-x)(x-b)))`

D

None of these

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