I am trying to understand an MGMAT answer explanation (guide 3 chapter 4 question 9 of fourth edition for those who have the book) which I think should be fairly simple but I'm having a brain freeze at the moment.
Can someone please explain how (1)/(square root of 2) = (square root of 2) / (2) ?? I am just having trouble trying to visualize the steps they left out.
Apologies for the sloppy nomenclature. I am still trying to figure out the 'square root' buttons.
multiply by 1 (square root 2 / square root 2)
numerator: 1 * square root 2 = square root 2
denominator: square root 2 * square root 2 = 2
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