Mathematics

Question

Please help with any of these problems ... I need serious answers ...
Please help with any of these problems ... I need serious answers ...

1 Answer

  • 1) you always need to jot down your observations for these types of questions first:
    1: 1
    2: 5
    3: 13
    4. 25

    They are all odd so there is probably a '+1' in the equation

    5=   4+1=    2n+1   =  2(1n)+1  =   2(n(n-1))+1
    13= 12+1=  4n+1   =  2(2n)+1  =   2(n(n-1))+1
    25=  24+1= 6n+1   =  2(3n)+1  =   2(n(n-1))+1
    Now we've established a formula. (this does work for the first one as well but the working is a bit confusing so I didn't include it.)

    the 37th one would be:
    2(37(37-1))+1
    2(37(36))+1
    2(1332)+1
    2664+1
    2665

    (I spent a really long time on this and I might edit this with the answers to the other ones but I might fall asleep because I'm ill at the moment, anyway, here you go.)

    Hope this helps :) 

NEWS TODAY