if-g-5-f-5-g-5-f-5-1-then-f-4-g-4-f-4-1-when-is-Gis-a-I-function-and-F-is-a-constant-

Question Number 161666 by mathlove last updated on 21/Dec/21

i f \frac{g (5) f (5)}{g (5) + f (5)} = 1 t h e n \frac{f (4) + g (4)}{f (4) + 1} = ?

w h e n i s G i s a I f u n c t i o n a n d F i s a c o n s t a n t

Commented by mr W last updated on 21/Dec/21

t h e l a n g u a g e i s n o t c l e a r .

w h a t a r e G a n d F ?

w h a t i s a I f u n c t i o n ?

Commented by mathlove last updated on 21/Dec/21

g is a fixed subject and f is subject to objectivity

Commented by mathlove last updated on 21/Dec/21

g (x) = c

f (x) = x

Commented by mathlove last updated on 21/Dec/21

p l e a s s i r m r W

Answered by Rasheed.Sindhi last updated on 21/Dec/21

\frac{g (5) f (5)}{g (5) + f (5)} = \frac{c . 5}{c + 5} = 1 \Rightarrow 5 c = c + 5 \Rightarrow c = \frac{5}{4}

\frac{f (4) + g (4)}{f (4) + 1} = \frac{4 + c}{4 + 1} = \frac{4 + \frac{5}{4}}{5} = \frac{21}{4 \times 5} = \frac{21}{20}