Posted by Urgen please help on Tuesday, May 29, 2012 at 8:59pm.
(a) What is the sum of the first 60 consecutive odd numbers?
Tell whether it illustrates inductive or deductive reasoning.
inductive reasoning deductive reasoning
(b) What is the sum of the first 1,200 consecutive odd numbers?
Tell whether it illustrates inductive or deductive reasoning.
inductive reasoning deductive reasoning

ALGEBRA  Reiny, Tuesday, May 29, 2012 at 9:29pm
a)
Sum(1 odd numbers) = 1
sum(first 2 odd numbers) = 1+3=4
sum(first 3 odd numbers) = 1+3+5 = 9
mmmhhh?
they look like perfect squares
sum(first 4 odd numbers) = 1+3+5+7 = 16
appears that sum(n odd numbers) = n^2
so Sum(first 60 odd numbers) = 60^2 = 3600
test it with an arithmetic sequence method
1+3+5+7 + ... 60 = ?
a = 1, d=2, n=60
sum(60) = (60/2)(2 + 59(2)) = 3600
ok, then!!!
According to your text or course notes, what kind of reasoning did I just use?
b) sum(1200) = 1200^2 = ....

ALGEBRA  Anonymous, Tuesday, January 19, 2016 at 9:32pm
38= 2 (n1)
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