Question

Given 1/u + 1/f =1/f
Find u in terms of f and u

Answer 1

Answer:

Step-by-step explanation:

1

​

=  

u

1

​

+  

v

1

​

 

u

1

​

=  

f

1

​

−  

v

1

​

=  

fv

v−f

​

 

u=  

v−f

fv

​

​