nope this is not mine , i m not trying as much , as only single question is enough so i solved only 2nd.
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nice editorial anee
but
how do you guys add math in these posts ? i know you put text in between $
but how do you add subscripts superscripts symbols like summition integrals etc.?
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\sum^n_{i = 0} \prod^m_{l = i} this is awesome… thanks.