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  1. AP Calculus
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Infinite Sequences and Series (BC Only)

Question 1
college-boardCalculus AB/BCAPExam Style
1 mark

Which of the following series can be said to converge based on the convergence of the series ∑n=1∞5n2\sum_{n=1}^{\infty} \frac{5}{n^{2}}∑n=1∞​n25​?

Question 2
college-boardCalculus AB/BCAPExam Style
1 mark

What conclusion can be drawn about the convergence of ∑n=4∞[cos⁡(π4)]nn−π\sum_{n=4}^{\infty}\left[\cos\left(\frac{\pi}{4}\right)\right]^n n^{-\pi}∑n=4∞​[cos(4π​)]nn−π by comparing it to an appropriate geometric or p-series?

Question 3
college-boardCalculus AB/BCAPExam Style
1 mark

How does replacing nnn with ln⁡(n)\ln(n)ln(n) in the numerator of each term affect the convergence or divergence of ∑n=2∞(−1)nnln⁡(ln⁡(n))\sum_{n=2}^{\infty} \frac{(-1)^{n}}{n \ln(\sqrt{\ln(n)})}∑n=2∞​nln(ln(n)​)(−1)n​?

Question 4
college-boardCalculus AB/BCAPExam Style
1 mark

Given the series ∑n=1∞(−1)n+1np\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n^p}∑n=1∞​np(−1)n+1​ for p>0p > 0p>0, which value of ppp will change the series from convergent to divergent?

Question 5
college-boardCalculus AB/BCAPExam Style
1 mark

For which values of ppp will the comparison test confirm that the series ∑n=2∞ln⁡(n)np\sum_{n=2}^{\infty} \frac{\ln(n)}{n^p}∑n=2∞​npln(n)​ converges?

Question 6
college-boardCalculus AB/BCAPExam Style
1 mark

For which of the following series can a direct comparison test NOT be used?

Question 7
college-boardCalculus AB/BCAPExam Style
1 mark

Given two series ∑n=1∞1n2\sum_{n=1}^{\infty} \frac{1}{n^2}∑n=1∞​n21​ and ∑n=1∞32n\sum_{n=1}^{\infty} \frac{3}{2^n}∑n=1∞​2n3​, which statement is true regarding their convergence?

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Question 8
college-boardCalculus AB/BCAPExam Style
1 mark

Given two competing medication dosage models based on series ∑n=0∞5n(2n)!\sum_{n=0}^{\infty} \frac{5^n}{(2n)!}∑n=0∞​(2n)!5n​ and ∑n=0∞3n(3n)!\sum_{n=0}^{\infty} \frac{3^n}{(3n)!}∑n=0∞​(3n)!3n​, which model's dosage calculations will converge more rapidly, ensuring quicker patient stabilization?

Question 9
college-boardCalculus AB/BCAPExam Style
1 mark

Which integral rule would most efficiently determine whether ∫5∞sin⁡(x)x3/2dx\int_5^\infty \frac{\sin(x)}{x^{3/2}} dx∫5∞​x3/2sin(x)​dx converges or diverges?

Question 10
college-boardCalculus AB/BCAPExam Style
1 mark

A physicist analyzing quantum tunneling probability through varying energy barriers uses an infinite sequence defined by (n!e⋅nn)1/n\left( \frac{n!}{e \cdot n^n} \right)^{1/n}(e⋅nnn!​)1/n, identifying thresholds; how should she interpret conditionally convergent versus absolutely convergent outcomes regarding particle behavior predictions?