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A nice little challenge for the day. Attached is the image for the question/challenge. A few notes
1) you must fill in all the boxes
2) you can not add any symbols into the box other than the provided numbers.
3) you cant use a trick of the wording to solve this, it must be solved with mathematical trickery
4) the answer is not "no" there is an actual solution by picking 3 numbers.
@freemo +15+15 (just fill the first box with nothing)
@freemo There's also a solution exists with 9, 9 and 15 (in any order), but one of 9's should be rotated by \[\frac{\pi}{2}\]
@freemo by \[\pi\] sorry :)
@freemo there's no word 'number' in the (original) rule #1 :)