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2 years ago

PLEASE HELP URGENT multiple choice algebra question:

Mathematics

1 answer:

Law Incorporation [45]2 years ago

5 0

Answer:

an=29.7(1/3)^(n−1)

Step-by-step explanation:

The first term, a1, is 29.7.

The common ratio, r, is 9.9/29.7 = 1/3.

The generic explicit rule is ...

an = a1·r^(n-1)

Filling in the values you have gives the explicit rule ...

an = 29.7(1/3)^(n-1)

_____

Please note that parentheses on the exponent are essential. Without them, the expression has a different meaning entirely.

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For the integral on the left, rewrite the integrand as

$\dfrac1{1+\cos v}\cdot\dfrac{1-\cos v}{1-\cos v}=\dfrac{1-\cos v}{1-\cos^2v}=\csc^2v-\csc v\cot v$

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