Respostas
respondido por:
1
é 216:
t1 + (n-1) * r = 3 + (72 - 1) * 3 = 3 + 213 = 216
todos os termos da PA: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 114, 117, 120, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 189, 192, 195, 198, 201, 204, 207, 210, 213, 216
t1 + (n-1) * r = 3 + (72 - 1) * 3 = 3 + 213 = 216
todos os termos da PA: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 114, 117, 120, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 189, 192, 195, 198, 201, 204, 207, 210, 213, 216
respondido por:
2
a72 = 3+ ( 72-1) .3
a72 = 3 + 71 .3
a 72 = 3+ 213
a72 = 216 ok
a72 = 3 + 71 .3
a 72 = 3+ 213
a72 = 216 ok
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