Question

if the sum of the term of an AP is 3n²-4n then find the first term of AP​

Answer 1

Answer:

If sn, the sum of first n terms of an AP is given by sn= (3n2-4n), then find its nth term. ... =3n²-4n-3(n²+1-2n)+4(n-1).

Answer 2

$\huge\boxed{\fcolorbox{cyan}{grey}{Solution:-}}$.

➡Given here.

↪Nth term of A.P.is .

=( 3n²-4n).

➡So, Now find First term of A.P.

↪Keep ,n=1,

= 3×1²-4×1

= 3-4

= -1

➡Hopes its helps u.