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icang [17]
3 years ago
7

The first term of a geometric series is a/b^2, and the common ratio is b/a^2. Find the next five terms of the geometric sequence

.
Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
5 0
Here it is in order (2nd to 6th):
1/ab, 1/a^3, b/a^5, b^2/a^7, b^3/a^9

Hope this helps!
Dafna11 [192]3 years ago
3 0

Answer:

the next five terms are:

\frac{1}{ab} , \frac{1}{a^{3} } ,\frac{b}{a^{5} } ,\frac{b^{2} }{a^{7} } ,\frac{b^{3} }{a^{9} }

Step-by-step explanation:

A geometric serie is a succession of terms on which every terms is the result of the last term multiply to a common ratio. for example, a geometric serie with inicial terms equal to 2 and the common ratio is 3, the four first numbers of the serie is given by

2, 6, 18, 54

Where every term is calculate as:

first term = 2

second term = first term x common ratio = 2 * 3 = 6

third term = second term x common ratio = 6 * 3 = 18

fourth term = third term x common ratio= 8 * 3 = 54

Then, with this exercise we have the same situation, the first term is \frac{a}{b^{2} } and the common ratio is \frac{b}{a^{2} }, so we get:

first term = \frac{a}{b^{2} }

second term = first term * common ratio = \frac{a}{b^{2} } *\frac{b}{a^{2} } = \frac{1}{ab}

third term = second term * common ratio = \frac{1}{ab} *\frac{b}{a^{2} } =\frac{1}{a^{3} }

fourth term = third term * common ratio = \frac{1}{a^{3} } *\frac{b}{a^{2} } = \frac{b}{a^{5} }

fifth term = fourth term * common ratio= \frac{b}{a^{5} } *\frac{b}{a^{2} } = \frac{b^{2} }{a^{7} }

sixth term = fifth term * common ratio= \frac{b^{2} }{a^{7} } *\frac{b}{a^{2} } = \frac{b^{3} }{a^{9} }

so, the next five terms are:

\frac{1}{ab} , \frac{1}{a^{3} } ,\frac{b}{a^{5} } ,\frac{b^{2} }{a^{7} } ,\frac{b^{3} }{a^{9} }

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Last option: A=2\pi rh

Step-by-step explanation:

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