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 one year ago
This is discrete functions. Can someone please help?? I can't figure out what I am doing wrong. I am supposed to get the indicated sum, but I keep doing something wrong. This is what series I have to work with x[15] for 0.3+0.003+0.00003+...... I know that a=0.3 and r=0.01 and n=15. so x[n] = a(r^n1)/r1
x[n] = 0.3((0.01)^151)/0.31
x[n] = 0.3((1))/7/10
but the outcome is 3/7. Is that the right outcome because the back of my text book says it's 10/33. And I don't understand what I am doing wrong. :/
 one year ago
This is discrete functions. Can someone please help?? I can't figure out what I am doing wrong. I am supposed to get the indicated sum, but I keep doing something wrong. This is what series I have to work with x[15] for 0.3+0.003+0.00003+...... I know that a=0.3 and r=0.01 and n=15. so x[n] = a(r^n1)/r1 x[n] = 0.3((0.01)^151)/0.31 x[n] = 0.3((1))/7/10 but the outcome is 3/7. Is that the right outcome because the back of my text book says it's 10/33. And I don't understand what I am doing wrong. :/

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klimenkov
 one year ago
Best ResponseYou've already chosen the best response.2What is \(0.01^{15}\)?

My15girl
 one year ago
Best ResponseYou've already chosen the best response.0that would be the common ratio or "r" to the exponent number of terms or "n"

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.2Can you calculate this?

My15girl
 one year ago
Best ResponseYou've already chosen the best response.0Yes, when I calculate it I get 1.E30, then I subtract 1 and get 1

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.2There is a mistake in the denominator. x[n] = 0.3((0.01)^151)/0.31

My15girl
 one year ago
Best ResponseYou've already chosen the best response.0wow, I am so clueless

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.2Actually, there are two mistakes.

My15girl
 one year ago
Best ResponseYou've already chosen the best response.0Okay I see where I went wrong. Wow
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