Original post by Nirm
So its write Square root 2 over 8 in the form of 2^n ( 2 to the power of n) apparently the answer is -5 over 2 but i have no idea how to get that answer.
Root 2/ 8 = 2^(1/2) / 2^3 = 2^[(1/2 - 3)] = 2 ^ (-5/2)
Reply if you don't understand still.
Original post by automathematic
Reply if you don't understand still.
Reply if you don't understand still.
Please don't post full solutions in future - it's against forum rules
We try to stick to giving hints to help posters progress with their understanding.
Original post by davros
Please don't post full solutions in future - it's against forum rules
We try to stick to giving hints to help posters progress with their understanding.
We try to stick to giving hints to help posters progress with their understanding.
Oh sorry, I didn't realize. Thank you for the heads-up
Original post by automathematic
Oh sorry, I didn't realize. Thank you for the heads-up
Thank you so much for replying
but i still do not get the part of why and where you get the 2 cubed and 2 to the power of 1/2 from. 
Original post by Nirm
Thank you so much for replying but i still do not get the part of why and where you get the 2 cubed and 2 to the power of 1/2 from.
but i still do not get the part of why and where you get the 2 cubed and 2 to the power of 1/2 from. OH. I get it now! root 2 is the same as 2 to the power of a half and 2 cubed is 8! Thanks a lot
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