Question
जर $a = 3$ आणि $d = -3,$ तर $t_5$ शोधा.

Answer

$t_n = a + (n – 1)d$
$\therefore t_5 = 3 + (5 – 1) (– 3)$
$= 3 + 4(– 3)$
$= 3 – 12$
$= – 9$

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