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Sequences and Series question

2019 · Shift 1 · Q36
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Sequences and Series question

2019 · Shift 1 · Q36

JEE AdvancedMathematicsSequences and SeriesNumerical+3 / −1
Let AP(a; d) denote the set of all the terms of an infinite arithmetic progression with first term a and common difference d > 0. If AP(1;3)∩AP(2;5)∩AP(3;7)AP(1;3) \cap AP(2;5) \cap AP(3;7)AP(1;3)∩AP(2;5)∩AP(3;7) = AP(a ; d), then a + d equals ..............
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