Question

How many
terms

of
the AP 18, 16, 17..
be taken so that their
sum is
Zero
​

Answer 1

Your answer is 19 terms

Step-by-step explanation:

Here a=18,d=−2.

Let there are n terms so that the sum is zero.

Now, Sn = n/2 [2a+(n−1)d]=0

⇒ n/2 [2×18+(n−1)×−2]=0

⇒36+(n−1)×−2=0

⇒n−1=18

⇒n=19

Therefore 19 terms of the sequence has to be taken so that their sum is zero.

Hope it will help you then please mark me brainliest

Answer 2

pls mark d above ans Brainliest ☺️