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If f(a) = 2 , f ' (a) = 1 , g (a) = -1 ,...

If `f(a) = 2 , f ' (a) = 1 , g (a) = -1 , g'(a) = 2` , then `lim_(x to a) (g (x) * f (a) - g (a) * f(x))/( x- a)` is equal to

A

`-5`

B

0

C

`1//5`

D

`5`

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The correct Answer is:
D
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