Find S for each arithmetic deries described 21.S_{16};d=\frac{-

vakirnarhh

vakirnarhh

Answered question

2021-11-13

Find S for each arithmetic deries described
21.S16;d=23,an=44

Answer & Explanation

Steacensen69

Steacensen69

Beginner2021-11-14Added 15 answers

Step1 given information
Given that-Arithmetic series-----
Common difference is (d)=23
Last term (An)=44
Find-------
S16=?
Step 2
Sn=n2[a1+an]
1) S16=8[a1+44]
an=44
a1(n1)d=44
2) a1=44+23(n1)
S16=8[{44+23(n1)}+44]
S16=8[[44+23(161)]+44]
S16=8[44×2+10]
S16=8×98
S16=784

Jeffrey Jordon

Jeffrey Jordon

Expert2022-08-30Added 2605 answers

Answer is given below (on video)

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