Question

good evening public.......



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what..is... answer.....

$\frac{f + 9} {u + 9} = \infty \\ \\ \\ \\ \\ f = what$
answer...........✌️✌️​

Answer 1

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.good night

Answer :: in it you will have to be equate infinity with 1/0.

and equate denominator with zero.

f is equal to focal length

hope it helps you

have a good day ahead ✌