Q. 2 C4.2( 6 Votes )

Find the indicated terms in each of the following sequence whose nth terms are:

= (n - 1)(2 - n)(3 + n) ; t20

Answer :

Given: tn = (n – 1)(2 – n)(3+n)

So, t20 = (20 – 1)(2 – 20)(3+20)

= (19)(-18)(23)

= -7866

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