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

If ` y = sqrt(( a - x) ( x - b)) - (a - b) tan^(-1) sqrt(( a - x)/( x - b))`, then ` ( dy)/( dx)` = a)1 b)` sqrt((a - x)/( x - b))` c)` sqrt(( a - x) ( x - b))` d)` (1)/( sqrt(( a - x)(x - b)))`

A

1

B

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

C

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

D

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

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The correct Answer is:
B
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