Question

If Sn=n(n+1),then find T1 and T2.

Answer 1

Answer:

T1 = 2 and T2 = 4

Step-by-step explanation:

Sn = n(n+1)

putting n = 1 ,

We get, T1

So, T1 = S1 = 2

And ,

putting n= 2,

We get,

T1 + T2 = S2 = 6

Therefore,

T2 = 6 - T1 = 4

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