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Sequences and series
Sequences are everywhere in mathematics! In these problems you can explore some sequences, learn how to represent them, and how to calculate sums of series.
      
   
    
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Summats clear
Find the sum, f(n), of the first n terms of the sequence: 0, 1, 1,
2, 2, 3, 3........p, p, p +1, p + 1,..... Prove that f(a + b) - f(a
- b) = ab.
      
   
    
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Be reasonable
Prove that sqrt2, sqrt3 and sqrt5 cannot be terms of ANY arithmetic
progression.
      
   
    
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Harmonically
Is it true that a large integer m can be taken such that: 1 + 1/2 +
1/3 + ... +1/m > 100 ?
      
   
    
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Prepare for university - pure mathematics
Helpful preparation for those intending to study a course involving pure mathematics at university.
      
   
    
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Prepare for university - applied mathematics
Helpful preparation for university for those intending to study a
course involving applied mathematics at university.
      
   
      
    
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NRICH and Olympiads
A useful entry point into the NRICH site for those students interested in Mathematical Olympiad problems or the Maths Challenges.
