Question

Formula to find the sum up to 30 terms of ap

Answer 1

Hi Friend !!!!!

======================

the formula is

Sn = n/2[2a+(n-1)d]

but according to question n = 30

Sn = 30/2[2a+(30-1)d]

Sn = 15[2a+19d]

where ,
a = first term

d= common difference

♡♥hope it helps u♥♡

Answer 2

HELLO...... FRIEND!!

THE ANSWER IS HERE,

Sum of 30 terms of AP is

$= > \: \frac{n}{2} (2a + (n - 1)d)$

$= > \: \frac{30}{2} (2a + (30 - 1)d)$

$= > \: 15(2a + 29d)$

Here ,

a = First term of AP.

d = common difference.

:-)Hope it helps u.