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3 years ago

50,866(underlined digits "66")

Mathematics

1 answer:

Tju [1.3M]3 years ago

6 0

Answer:

6 at tens place is 10 times 6 at unit place.

Step-by-step explanation:

We are given that a number

50,866

Underlined digits are 66.

We have to find the relationship between underlined digits.

Unit place =6

Tens place=

Tens place value= $6\times 10=60$

Unit pace value=6

6 at tens place is 10 times 6 at unit place.

This is required relation relation between underlined digits 66.

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$\large\boxed{\text{sixth term is equal to}\ \dfrac{1}{1024}}$

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The explicit formula for a geometric sequence:

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We have

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<h2>It's not a geometric sequence.</h2>

If $a_3=-\dfrac{1}{16}$ then the common ratio is $r=\dfrac{-\frac{1}{16}}{\frac{1}{4}}=-\dfrac{1}{16}\cdot\dfrac{4}{1}=-\dfrac{1}{4}$

Put to the explicit formula:

$a_n=-1\left(-\dfrac{1}{4}\right)^{n-1}$

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