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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 result suggests that the Ratio Test for the series ∑n!3n\sum \frac{n!}{3^n}∑3nn!​ is inconclusive?

Question 2
college-boardCalculus AB/BCAPExam Style
1 mark

In parametric equations, what represents the velocity vector of an object moving along a path given by (x(t),y(t))(x(t), y(t))(x(t),y(t))?

Question 3
college-boardCalculus AB/BCAPExam Style
1 mark

For which values of xxx does the series ∑k=2∞(x−34)kk(k−1)\sum_{k=2}^{\infty}\left(\frac{x-3}{4}\right)^k k(k-1)∑k=2∞​(4x−3​)kk(k−1) converge according to the ratio test?

Question 4
college-boardCalculus AB/BCAPExam Style
1 mark

What is the standard formula for calculating the area under a curve defined by parametric equations x(t)x(t)x(t) and y(t)y(t)y(t)?

Question 5
college-boardCalculus AB/BCAPExam Style
1 mark

If a sequence is of the form 1np\frac{1}{n^p}np1​ where nnn is greater than or equal to 1, which convergence test should you use to determine the convergence or divergence of the series?

Question 6
college-boardCalculus AB/BCAPExam Style
1 mark

What is true when you apply ratio tests?

∑i=6∞i(i+p)−v\sum_{i=6}^{\infty} \frac{i}{(i+p)^{-v}}∑i=6∞​(i+p)−vi​

Question 7
college-boardCalculus AB/BCAPExam Style
1 mark

What effect would replacing every instance of n with n2n^2n2 in only numerator terms within an alternating series sum having general term (−1)nn(a−7)b+cn(-1)^n \frac{n^{(a-7)}}{b+c^n}(−1)nb+cnn(a−7)​, where both constants are positive, have on its absolute convergence tested via ratio test?

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Question 8
college-boardCalculus AB/BCAPExam Style
1 mark

When using the Ratio Test on the series ∑n=2∞(ln⁡n)ln⁡nnp\sum_{n=2}^{\infty} \frac{(\ln{n})^{\ln{n}}}{n^p}∑n=2∞​np(lnn)lnn​, what value of ppp will ensure convergence?

Question 9
college-boardCalculus AB/BCAPExam Style
1 mark

For a series represented by an=n!nna_n = \frac{n!}{n^n}an​=nnn!​, what happens if we replace it with a series given by bn=(n+1)!(n+1)n+1b_n = \frac{(n+1)!}{(n+1)^{n+1}}bn​=(n+1)n+1(n+1)!​?

Question 10
college-boardCalculus AB/BCAPExam Style
1 mark

If the series ∑n=1∞n!(kn)n\sum_{n=1}^{\infty} \frac{n!}{(kn)^n}∑n=1∞​(kn)nn!​, where kkk is a positive constant, were subjected to the Ratio Test, what would be the range of kkk values for which this series converges?