Is it aceptable to write "i.e." at the begining of a sencnce?
For example:
Does the above formula equal 2?
i.e. does (insert simple formula here) equal 10?
or should it be
Does the above formula equal 2?
I.e. does (insert simple formula here) equal 10?
or both capitalised?
Does the above formula equal 2?
I.E. does (insert simple formula here) equal 10?
Or would it be better to write
Does the above formula equal 2?
By that I mean does (insert simple formula here) equal 10?
or
Does the above formula equal 2?
That is, does (insert simple formula here) equal 10?