bmelyk
Write the following sums in summation notation.



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bmelyk
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\[1+\frac{ 2 }{ 3 }+\frac{ 3 }{ 5 }+\frac{ 4 }{ 7 }+\frac{ 5 }{ 9 }+\frac{ 6 }{ 11 }+\frac{ 7 }{ 13 }\]

bmelyk
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not sure how to start it.

lemonbubblegum
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can anything be reduced???

precal
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dw:1359576924956:dw

precal
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dw:1359577005004:dw

precal
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dw:1359577014900:dw

precal
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dw:1359577090843:dw

precal
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ok just a lot of guess and check but that one works

bmelyk
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i know those formulas but, im not sure how im supposed to start it. like how do you know what n equals?

bmelyk
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@precal

precal
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you can use n or k

precal
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I just notice that the numerators were 1,2,3,4,5,6,7

precal
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so I knew I could use n or n+1

precal
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the denominators were odd 1,3,5,7,9,11,13
in math we use 2n+1 for odd
for evens we use 2n

precal
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I had to guess whether to use n=0 or n=1 as my first numbers, so that is why you see me testing themdw:1359577972172:dw

precal
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there really is no one way to do these, just a lot of guess and check

bmelyk
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that's kinda confusing lol.

precal
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I showed you my way of thinking, just follow my slides in order. Math is all about patterns

bmelyk
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yes but i don't see how you are guessing it.

bmelyk
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i really don't understand what you are doing,

precal
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I wrote my process out, sorry perhaps someone else can explain it to you

bmelyk
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i just don't see what you are doing is all.

precal
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sorry, series and sequences get easier when you have done many
it takes time and experience
I just used guess and check