Need help with these 2 don’t understand either
1 answer:
You might be interested in
sum of sequence Find the sum of 46 + 42 + 38 + ... + (-446) + (-450) is -25,250
<u>Step-by-step explanation:</u>
We need to find sum of sequence : 46 + 42 + 38 + ... + (-446) + (-450)
Given sequence is an AP with following parameters as :
So , Let's calculate how many terms are there as :
⇒
⇒
⇒
⇒
⇒
⇒
Sum of an AP is :
⇒
⇒
⇒
⇒
Therefore , sum of sequence Find the sum of 46 + 42 + 38 + ... + (-446) + (-450) is -25,250