carolc0623 carolc0623

09-06-2021
Mathematics

contestada

Prove for any positive integer n, 1x2 + 2x3 + 3x4....n(n+1) = n(n+1)(n+2)/3

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deaviscarsonking1090 deaviscarsonking1090

09-06-2021

2)3+(+1)(+2)
(
k
)
(
k
+
1
)
(
k
+
2
)
3
+
(
k
+
1
)
(
k
+
2
)

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jshsvfzknsvsmauccd jshsvfzknsvsmauccd

10-06-2021

I’m kinda confused with your question but imma say 20

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