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# Rationalise denominator

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1. I don't understand where I've gone wrong on question 11 please help- apparently it's root 31? I got 7 root 31/ 31
2. (Original post by Lucofthewoods)
I don't understand where I've gone wrong on question 11 please help- apparently it's root 31? I got 7 root 31/ 31
6 x 6 = 36 not 12
3. (Original post by Alex621)
6 x 6 = 36 not 12
Oh god I do know that just accidentally added them :/ haven't done maths since the 9th June I've gone completely useless despite getting an a* in maths last week haha
4. (Original post by Lucofthewoods)
I don't understand where I've gone wrong on question 11 please help- apparently it's root 31? I got 7 root 31/ 31
Where did you get 12 from? Its 36 instead of 12. Then you get 31root31/31 and then they cancel out to give root 31.
5. (Original post by Lucofthewoods)
Oh god I do know that just accidentally added them :/ haven't done maths since the 9th June I've gone completely useless despite getting an a* in maths last week haha
Haha it happens to all of us

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