Answered

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nth triangular number = 2 (n + 1)
Example: 4th triangular number = (4 + 1)
= 10
a) Find the 12th triangular number.
b) Find the 50th triangular number.
I’m so stuck on this! Please help?

Sagot :

janaardah6

Answer:

a) 2(n+1)

=2(12+1)

=2*13

=26

b) 2(n+1)

=2(50+1)

=2*51

=102

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