luan-luna
luan-luna
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an = a1 + (n -1) x r r = a2 - a1 r = 9 - 6 r = 3 an = a1 + (n -1) x r a80 = 6 + (80-1) x 3 a80 = 6 + 79 x 3 a80 = 6 + 237 a80 = 243 S80 = ( a1 + a80 ) x n / 2 S80 = ( 6 + 243 ) x 80 / 2 S80 = 249 x 80 / 2 S80 = 19 920 / 2 …
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an = a1 + (n -1) x r r = a2 - a1 r = 9 - 6 r = 3 an = a1 + (n -1) x r a80 = 6 + (80-1) x 3 a80 = 6 + 79 x 3 a80 = 6 + 237 a80 = 243 S80 = ( a1 + a80 ) x n / 2 S80 = ( 6 + 243 ) x 80 / 2 S80 = 249 x 80 / 2 S80 = 19 920 / 2 …
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an = a1 + (n -1) x r r = a2 - a1 r = 9 - 6 r = 3 an = a1 + (n -1) x r a80 = 6 + (80-1) x 3 a80 = 6 + 79 x 3 a80 = 6 + 237 a80 = 243 S80 = ( a1 + a80 ) x n / 2 S80 = ( 6 + 243 ) x 80 / 2 S80 = 249 x 80 / 2 S80 = 19 920 / 2 …
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an = a1 + (n -1) x r r = a2 - a1 r = 9 - 6 r = 3 an = a1 + (n -1) x r a80 = 6 + (80-1) x 3 a80 = 6 + 79 x 3 a80 = 6 + 237 a80 = 243 S80 = ( a1 + a80 ) x n / 2 S80 = ( 6 + 243 ) x 80 / 2 S80 = 249 x 80 / 2 S80 = 19 920 / 2 …