Question

solve if you are genius
derive
nth term of an AP =L-(n-1)d
50 points

Answer 1

$\mathbb{ \huge{ \fcolorbox{green}{pink}{SOLUTION:-}}}$

$\mathbb{ \bold{ \fcolorbox{green}{pink}{USING ARITHMETIC\: THEOREM:-:-}}}$

If a be the first term and d is the common Difference and l is the last terms of a given Arithmetic Sequence or Progression then,

we find:- l-(n-1)d

We have ;

last terms=) l-(1-1)d

2nd terms from the end=) (l-d)={l-(2-1)d

Third terms from the end=)l-2d)={l-(3-1)d

Fourth terms from the end=) (l-3d)={l-(4-1)d

So,

Nth terms of Arithmetic Sequence or Progression:-

(l-(n-1)d

Thus, It's Proved!!

Answer 2

hey your answer is in attachment