1.

If f is continuous on [a,b] and differentiable in (a,b) (ab gt0 ) , then there exists c in (a,b) such that (f(b)-f(a))/((1)/(b) - ( 1)/(a))=

Answer»

`-C^(2)f (c )`
`c^(2) f (c )`
`- c f' ((1)/( c ))`
`CF' ((1)/( c^(2)))`

Answer :A


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