What is the condition that causes an infinite geometric series to have no sum? Explain why

1 answer:

4 0

This only happens when the ordinary ratio is greater than one, the terms of the sequence will get bigger and bigger, and if you add larger numbers you won't get a definitive answer.

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Find the difference between <br> 10 and −25 (Hint: Subtract the numbers in the order given.)

gladu [14]

The difference is -15

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3 years ago

PLEASE HELP ME I DON'T UNDERSTAND HOW TO DO THIS!!!!

Georgia [21]

Answer:

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Step-by-step explanation:

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3 years ago

What is -0.8a-8=0.2a ?

nikklg [1K]

I hope this helps you

8 0

4 years ago

Write an explicit formula for an,the Nth term of the sequence 4,12,36

Rudik [331]

Answer:

$3^{n}+3^{n-1}$

Step-by-step explanation:

Since the sequence is geometric (it multiplies the previous number each time). The nth term sequence would be $x^n + yn$

Because the sequence multiplies by 3 each time, The base number in that equation would be $3^n +yn$ .

So $3^n$ of the equation would be:
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Compare the 2 equations:
4, 12, 36

3, 9 ,27

The difference between the 2 equations is: 1, 3, 9 which itself is a geometric sequence so the nth term of this new equation is: $3^{n-1}$ .

Combine these 2 equations together and you get:

$3^{n}+3^{n-1}$ .

6 0

2 years ago

Which step is wrong, Step 1, Step 2, Step 3 or Li didn't make a mistake

mart [117]

Hello there!

The correct answer is option A

Instead of the division sign, it suppose to be multiply.

Have fun on Khan Academy!

7 0

3 years ago