Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Sequences

Could I have help with the method in part b please.

A sequence of terms u1, u2, u3....is defined by un=24-2/3n

a) write down the exact values of u1,u2,u3.

b) find the value of k such that Uk=0

(answer I got for part a was - u1 = 70/3 , u2 = 68/3 , u3 = 22)

Thanks!

if uk=0 then 24-2/3k=0 which leaves you with k=36 I think.

OP

Original post by lcss

if uk=0 then 24-2/3k=0 which leaves you with k=36 I think.

Oh...I was trying to make that so much more complicated!!

Thanks! :smile:

:smile:

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