The term of an arithmetic sequence are shown below. Which recursive formula defines the sequence. F(1)=6, f(4)=12, f(7)=18
1 answer:
Answer:
f(n) = f(n - 1) + 2.
Step-by-step explanation:
The general form is f(n) = f(n-1) + d n >= 2.
f(4) - f(1) = 12-6 = 6
f(7) - f(4) = 18 - 12 = 6
So the common difference d = 6 / 3 = 2.
The answer is f(n) = f(n - 1) + 2.
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TW correspondant to AD
Step-by-step explanation:
That's the right answer
Answer:
6(8-5)
Step-by-step explanation:
The correct answer is: 2/5.
Explanation:
First you have to add the following expressions:
![(\frac{3}{5}+\frac{1}{5}i)+(\frac{4}{5}-\frac{2}{5}i) \\ (\frac{3}{5}+ \frac{4}{5})+(\frac{1}{5}i-\frac{2}{5}i) \\= \frac{7}{5}-\frac{1}{5}i](https://tex.z-dn.net/?f=%28%5Cfrac%7B3%7D%7B5%7D%2B%5Cfrac%7B1%7D%7B5%7Di%29%2B%28%5Cfrac%7B4%7D%7B5%7D-%5Cfrac%7B2%7D%7B5%7Di%29%20%5C%5C%20%28%5Cfrac%7B3%7D%7B5%7D%2B%20%5Cfrac%7B4%7D%7B5%7D%29%2B%28%5Cfrac%7B1%7D%7B5%7Di-%5Cfrac%7B2%7D%7B5%7Di%29%20%5C%5C%3D%20%5Cfrac%7B7%7D%7B5%7D-%5Cfrac%7B1%7D%7B5%7Di)
Now subtract the above expression from
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![(\frac{9}{5}- \frac{1}{5}i) - (\frac{7}{5} -\frac{1}{5}i) \\ (\frac{9}{5} -\frac{7}{5}) + (\frac{1}{5}i -\frac{1}{5}i) \\ \frac{2}{5} \\](https://tex.z-dn.net/?f=%28%5Cfrac%7B9%7D%7B5%7D-%20%5Cfrac%7B1%7D%7B5%7Di%29%20-%20%28%5Cfrac%7B7%7D%7B5%7D%20-%5Cfrac%7B1%7D%7B5%7Di%29%20%5C%5C%20%28%5Cfrac%7B9%7D%7B5%7D%20-%5Cfrac%7B7%7D%7B5%7D%29%20%2B%20%28%5Cfrac%7B1%7D%7B5%7Di%20-%5Cfrac%7B1%7D%7B5%7Di%29%20%5C%5C%20%5Cfrac%7B2%7D%7B5%7D%20%5C%5C)
Hence the correct answer is 2/5.
Answer:1/6
Step-by-step explanation: So you toss it 3 times(1/3) and you have 50% chance(1/2) of choosing heads or tails... so,
1/3 x 1/2 = 1/6