find the indicated terms in each of the sequences whose nth terms are tn= n(n-2)/n+3:t20
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It is pretty simple, so you have the formula for the nth term of a sequence and they are asking you to find the 20th term of that series so all we have to do is in the equation put the n= 20
therefore,
tn= n(n-2)/n+3
On putting n=20.
t20 = 20*( 20-2)/ 20 +3
t20 = 20*18/20 +3
t20 = 18+3
t20 = 21.
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