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Successive Differences 2017-04-06
Twaha pose la question :
Please find the equation of the sequence 1 2 4 7 11 16 22
Penny Nom lui répond.
A pattern rule for a sequence 2016-10-28
Grace pose la question :
Here's a Grade 7 question, we need to find the pattern rule:

1 - 1
2 - 3
3 - 6
4 - 10
......
It may involve exponents, but we can't seem to figure it out.
thank you.
Grace.

Penny Nom lui répond.
A sequence 2016-01-05
Mia pose la question :
the next three terms in each sequence. 0.4, 0.54, 0.68, 0.82,
Penny Nom lui répond.
The nth derivative of x^(n-1) log x 2010-03-10
shambodeb pose la question :
This is a successive differentiation problem by Leibnitz theorem

If y = xn-1 log x ; Proof nth derivative y(n) = (n-1)!/x

Harley Weston lui répond.
Successive differences 2009-06-18
Jonathan pose la question :
I'm trying to find the next number sequence for this equation: 1 11 35 79 149 251, my problem is that I worked it out and ended up with a single number 17. What am I doing wrong. Thank you for any help.
Robert Dawson and Penny Nom lui répond.
3,6,10,15,and 21 2008-09-28
jarred pose la question :
i am currently stumped on a math project that requires me to find out the recursive formula for a sequence of numbers. the numbers in the sequence are 3,6,10,15,and 21. Thank you for your time.
Walter Whiteley lui répond.
The nth term 2007-10-18
shannon pose la question :
Ok , what i am having problems with is the nth term. I get how the numbers come together, but i am having trouble with finding the nth term.
Penny Nom lui répond.
Find the next 3 terms of the sequence 2007-02-07
rose pose la question :
find the next 3 terms of the sequence 2,3,9,23,48,87
Penny Nom lui répond.
Successive differences 2002-01-20
Linsey pose la question :
what is the rule for working out the formula for a sequence with three lines of difference? eg.
                      
                     1, 3, 7, 15, 29 
1st line differences:  2, 4, 8, 14 
2nd line differences:    2, 4, 6 
3rd line differences:     2, 2 

Penny Nom lui répond.
Finding roots 2001-02-01
A student pose la question :
My math problem is right now we are working on roots. I don't quite understand how to find the answer to the problems, i was wondering what is the easiest, and fastest way to find the answers to roots?
Penny Nom and Claude Tardif lui répond.
Finding a rule for a sequence 1999-02-17
Lindsey Masters pose la question :
I'm doing a maths investigation and i have a sequence which goes:-

13,16,25,32,45,56,73.

Our teacher told us we have to find a rule by looking at the differences of the terms until we find a constant. The first differences are:-

3,9,7,13,11,17.

The differences of these are:- ......

Please could you tell me how to work it out so that I could work out the rules of similar sequences.
Penny Nom lui répond.

 
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