#sigma notations

18 messages · Page 1 of 1 (latest)

smoky mortar
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can someone help with part bii im so confused

deep garden
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am i being dumb or is it just asking to work out u1 + u2 + u3

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,w 6x^2 - 5x - 4 = 0

deep garden
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k = 4/3 as it must be positive, so
u_n+1 = 4/3 u_n - 5

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now you can use this to work out u2 and u3

smoky mortar
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this is what im confused about

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what does Ur stand for

smoky mortar
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it’s fine i got

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it

fierce kindle
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it's just saying

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since your sum is from r=1 to 3

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we're usually u_r

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so u_1 , u_2 , u_3

smoky mortar
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i got it dw

fierce kindle
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ah okay