Q. 265.0( 1 Vote )

# Let f be an inver

Formula:-

(i)A function f : X Y is defined to be invertible, if there exists a function g : Y X

such that gof =Ix and fog = Iy .The function g is called the inverse of f and is denoted by f-1

(II)Let f : AB and g : BC be two functions.

Then, the composition of f and g, denoted by g o f, is defined as the function g o f : AC

given by g o f (x) = g (f (x))

Given:-

(i)f be an invertible real function

(f–1 of) (1) + (f–1 of) (2) + … +(f–1 of) (100)

=1+2+3+………+100

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