Math, asked by harshthegreat5469, 1 year ago

There are 20 terms in an arithmetic sequence the sum of first and last term 88

manthan7445: what we have to find???

Answers

Answered by amitnrw

1

Answer:

880

Step-by-step explanation:

Sum = (n/2)(a + L)

= (20/2)(88)

= 880

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