If a1,a2,a3,a4 are terms of an AP, then the relation between them is
A
a1+a2=a2+a3
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B
a1+a4=a2+a3
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C
a1+a3=a2+a4
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Solution
The correct option is Ba1+a4=a2+a3 The sum of the first term and the last term is equal to the sum of the second term and the second last term and so on.
Hence, a1+a4=a2+a3