Question

what is the inverse of f(x)=3/x+5

Answer 1

First, it must be clear whether you mean:\[f(x)=\frac{ 3 }{ x+5 }\]or:\[f(x)=\frac{ 3 }{ x }+5\]

Answer 2

the second one

Answer 3

f(x)=3/x+5

Answer 4

A quick and dirty method is to use y instead of x:\[y=\frac{ 3 }{ x }+5\]Then switch x and y:\[x=\frac{ 3 }{ y }+5\]and then solve for y (rewrite this formula to read y=... again)

Answer 5

ll be interchange the variable e(x) put x and x put f(x)=y

Answer 6

ll be

Answer 7

@mustry: that was what I wrote...

Answer 8

ll be\[x=3/y+5\]

Answer 9

I think @alanis should get the chance to try it now

Answer 10

ur r8@ZeHanz

Answer 11

wouldnt be