Question

Its frm A.P. plz answer it..

Answer 1

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( i )

Let n = n + 2

Then ,

$T_{n + 2} = 7 - 3 ( n + 2 )$

$T _{n + 2} = 7 - 3n - 6$

$T _{n + 2} = 1 - 3n$

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( ii )

$= 5 T_{n} - 4$

$= 5 ( 7 - 3n ) - 4$

$= 35 - 15n - 4$

$= 31 - 15n$

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