My answer is (2) plz show working
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hi
f = -R/2
given : m = -n
m = f/f-u = -(R/2) / (-R/2 -u) = -n
then -n = R/(R+2u)
R= -Rn - 2nu
R+ Rn= -2u
(-R-Rn) / 2n = u
-R(n+1) / 2n = u
seldon :)
f = -R/2
given : m = -n
m = f/f-u = -(R/2) / (-R/2 -u) = -n
then -n = R/(R+2u)
R= -Rn - 2nu
R+ Rn= -2u
(-R-Rn) / 2n = u
-R(n+1) / 2n = u
seldon :)
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