brilliant website! thank you!
Glad it’s been useful.
How much do you think they care about rationalising the denominator? For example, is it acceptable to leave the answer as x=r sqrt(pi/(2sqrt(2)-2))?
If you are tight for time I think it’s sensible to cut out the simplification step. But often in exams I think you t for presenting the answer in the most simple form.
By definition: 2 = √2 x √2. Therefore (dividing both sides by √2) 2/√2 =√2, and therefore s(1+2/√2) = s(1+√2)
Thank you very much, I appreciate the help!
Can I just ask how did you get s(1+2/sqare root 2) to equal to : s(1+square root 2)
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