Mathematics, 12.07.2021 09:10 blake2001
Let Tn be the Nth triangular number Qn be the Nth square number and Pn be the Nth pentagonal number.
A) Show that 3Pn = T3n-1
B) Show that Pn-Qn = Tn-1 and hence that P3n-3Pn = Q3n
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