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yes, you made mistakeyour solution is 2sin(θ )/[2/sin(180- ϕ)] = d which is , when you simplify that you get which is incorrectcorrect answer is
yes, you made mistake
your solution is 2sin(θ )/[2/sin(180- ϕ)] = d which is , when you simplify that you get which is incorrect
correct answer is