1.

If the function f(x) and phi (x) are continuous in [a,b] and differentiable in (a,b) , then the value of 'c' for the pair of functions f(x) = e^(x), phi (x) = e^(-x)is

Answer»

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

ANSWER :C


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