Build a geometric sequence given a = 1 and r = (1)/(√2)
Do you know where to start?
wel, isn't 1 the initial? So would I start with 1 and multiply is by 1/(√2) and continue?
Yup. You just need to know how many you need to do before you have to stop.
I got (√2)/2 but that isn't an answer choice?
Well what math got you a √2 on the top? and what are your answers?
I used my calculator.
Well what are the answers you have to choose from?
The only ones that start with one go to 1, 1/(√2), 1/2, 1/(2√2), 1/4 and 1, √2, 2, 2√2, 4 and 1, 2/1/2, 2, 2/3/2, 4.
Well if your multiplying by 1/√2 you already know the first and second term of the sequence which is...
uhm....Idk. I keep getting 2/√2
Your first number is going to be 1 and then you multiply your 1st value by r [1/(√2)] to get your 2nd value and then you multiply your 2nd value by r your 3rd value Can't you do it by hand? |dw:1375318764521:dw|
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