the sum of the 4th and the 6th terms of an arithmetic progression is 42....
the sum of the 4th and the 6th terms of an arithmetic progression is 42....
the sum of the 4th and the 6th terms of an arithmetic progression is 42. the sum of the third and the 9th terms of the progression is 52. find the first term the common difference and the sum of the first ten terms of the progression.?
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