recursive formula

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recursive formula

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critical Oct 5, 2018

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Best Answer

$t_1 = 1\\ t_{n+1} = t_n + n \\ t_2 = 1 + 2 = 3\\ t_3 = 3 + 3 = 6 \\ t_4 = 6 + 4 = 10 \\ t_5 = 10 + 5 = 15$

This matches up with choice (c)

Rom Oct 5, 2018

Rom · Answer 1 · 2018-10-05T03:40:45

$t_1 = 1\\ t_{n+1} = t_n + n \\ t_2 = 1 + 2 = 3\\ t_3 = 3 + 3 = 6 \\ t_4 = 6 + 4 = 10 \\ t_5 = 10 + 5 = 15$

This matches up with choice (c)