+0  
 
+1
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avatar+377 

Hi guys, me again,

 

last one for the day... wink

 

T1=2, T2=6 and T3=12. Determine the nth term formula.

 

so I said:

T1=2

T2=6

T3=12

 

But:

2=1.2

6=2.3

12=3.4

 

This gives me the formula: Tn = n(n+1)

My problem is, they ask to determine which term will have a value of 420?....I cannot use the formula I got to...so I must have gone wrong somewhere. Could someone please show me my error?...thank you all kindly..

 Mar 5, 2019
 #1
avatar+21848 
+3

T1=2, T2=6 and T3=12. Determine the nth term formula.

 

see: https://web2.0calc.com/questions/pattern_7

 

laugh

 Mar 5, 2019

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