In the four term of an AP the product of first and third term is equal to the sum of first and fourth term. And 15th term is 44..find AP.?
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Step-by-step explanation:
2,5,8,11 are the first 4 terms.
14,17,20,23
26,29,32,35
38,41,44,48 are the first 16 terms
Sum of 1:15 is 8*15=120
Multiply by 3 is 360
Subtract 15
Sum is 345
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