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 Please can you help. How do I work out the answer in terms of pi. I am not allowed to give a decimal as an answer. I do not want to be told the answer just

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Please can you help. How do I work out the answer in terms of pi. I am not allowed to give a decimal as an answer. I do not want to be told the answer just how to work it in terms of pi. Both my calulaters are giving me deciamls.

 

squareroot of 1-cos(24/25) /2

 Nov 23, 2016

3+0 Answers

 #1
avatar+118654 
0

What is divided by 2?

Your question is ambiguous. 

 Nov 23, 2016
 #2
avatar+118654 
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I think your question has other errors too :///

 Nov 23, 2016
 #3
avatar+9665 
0

\(\sqrt{\dfrac{1-\cos\frac{24}{25}}{2}}\\ =\cos\dfrac{12}{25}\)

It cannot be expressed in terms of pi :(

 Nov 23, 2016

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