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I need to solve c pls help were working on on srthemic sequence formula sn=n/2(u1+un)

I need to solve c pls help were working on on srthemic sequence formula sn=n/2(u1+un-example-1
User Dushkin
by
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1 Answer

17 votes
17 votes

Answer: 78,800

The formula is given as

Sn = n/2(u1 + Un)

Let n = 16

u1 = first term

Un = Last term

According to the table given

U1 = 6800

U16 = 3050

S16 = 16/2( u1 + u16)

S16 = 16/2(6800 + 3050)

Firstly, solve the expression inside the parenthesis

S16 = 16/2 (9850)

S16 = 8 x 9850

S16 = 78,800

The answer is 78,800

User Keybored
by
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