Math, asked by swatantraverma1050, 8 months ago

The sum of 1st and 21st terms of an arithmetic sequence is 104. What is the 11th term?

Answers

Answered by kcsharma1285

2

Answer:

a11 = 52

Step-by-step explanation:

a1 + a21 = 104

a + a +20d =104

2a + 20d =104

a + 10d = 52

a = 52-10d

a11= a+ 10d

= 52-10d+10d

= 52

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