alyxxboothe
15.07.2019 •
Mathematics
Which of the following shows the correct first step to prove the following by mathematical induction? 3 + 11 + 19 + 27 + … + (8n - 5) = n(4n - 1) a) 3 + 11 + 19 + 27 + … + (8 • 1 - 5) = 1(4 • 1 - 1) b) 8 • 1 - 5 = 1(4 • 1 - 1) c) 3 + 11 + 19 + 27 + … + (8k - 5) = k(4k - 1) d) 3 + 11 + 19 + 27 + … + (8k - 5) + [8(k + 1) - 5] = (k + 1)[4(k + 1) - 1]
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Ответ:
Letter Choice (A), 3 + 11 + 19 + 27 + + (8 * 1 - 5) = 1(4 * 1 - 1)
Second Step:
Letter Choice (C), 3 + 11 + 19 + 27 + + (8k - 5) = k(4k - 1)
Third Step:
Letter Choice (D), 3 + 11 + 19 + 27 + + (8k - 5) + [8(k + 1) - 5] = (k +1)[4(k + 1) - 1]
Hope that helps
Ответ:
Step-by-step explanation:
Explanation:
Density,
ρ
=
Mass
Volume
.