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Mathematics 17 Online
OpenStudy (anonymous):

. What are the first three terms of the sequence: a1 = 4 and an = 2(an 1)2? (Points : 4) 8, 16, 32, 64 4, 16, 32, 64 8, 64, 128, 256 4, 32, 2048

OpenStudy (anonymous):

is this a trick question @Johnbc @Phebe

OpenStudy (phebe):

im here

OpenStudy (phebe):

no its not

OpenStudy (anonymous):

look: it says 3 TERMS and then each one is 4 terms except d

OpenStudy (phebe):

i think its B but hold on k

OpenStudy (anonymous):

Check the equation again im not sure if it is this:\[2(a_n \times 1)2\]

OpenStudy (phebe):

well it must be D then

OpenStudy (phebe):

yea check the equation

OpenStudy (phebe):

i could have been wrong

OpenStudy (anonymous):

well they define the first term for you so it has to be 4 so the next term to use would be 5

OpenStudy (anonymous):

john it is: http://prntscr.com/3kk30t

OpenStudy (anonymous):

That is tricky i dont understand what the _ means if either a subtraction or space?

OpenStudy (anonymous):

i think it is a subtraction sign

OpenStudy (phebe):

well u should put D if it said 3 instead of 4

OpenStudy (anonymous):

\[2(an-1)^{2r}\] This may be the equation

OpenStudy (anonymous):

without the mini r at the end

OpenStudy (phebe):

byee nd the answer is D k XD

OpenStudy (anonymous):

http://prntscr.com/3kk3mm the whole question

OpenStudy (anonymous):

should i put d?

OpenStudy (phebe):

yes totally

OpenStudy (anonymous):

haha im worried it is a typo

OpenStudy (anonymous):

if you figure it out what do u get?

OpenStudy (anonymous):

D would be correct f we plug in the next number in the sequence

OpenStudy (anonymous):

If we have a1 = 4 then i get a2 = 32

OpenStudy (anonymous):

when i plug in a2 = 32 i get a3 = 2048

OpenStudy (anonymous):

but there must be a typo in that question for sure

OpenStudy (anonymous):

alright ty i guess it was a trick question kinda

OpenStudy (anonymous):

Yeah trick question ha ha

OpenStudy (anonymous):

No problem

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