I have an assignment and this is to find the equation of the sequence 3, -6, 12, -24? Please help me! Thanks
I have an assignment and this is to find the equation of the sequence 3, -6, 12, -24? Please help me! Thanks
What do you think the pattern is ?
multiplying the preceding term by -2 to get the next term... but what is the equation?
Well you've got it,
so
Well, the general way to write the 'general solution of a sequence' of this type (geometric progression) is that way:
where n is the n th term (for example T1 is first term, T2 second term, etc)
a is the first term
r is the common ratio
Well, you have Equations setting up:
Those are enough to give the formula:
Anyway, that's how you do it in higher classes if ever I made a wrong guess on your math level.
You're welcome! :)
God bless too :)
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