Ответ:
а) d = 3
б) d = - (15/17)
в) d = - (7/55)
Объяснение:
d = (an - a₁) : (n - 1)
а) d = (an - a₁) : (n - 1) = (37 - 16) : (8 - 1) = 21 : 7 = 3
б) d = (an - a₁) : (n - 1) = (-11 - 4) : (18 -1) = - (15/17)
в) d = (an - a₁) : (n - 1) = (-2,3 - 0,5) : (23 -1) = (-2,8) : 22 = - (28/220) = - (7/55)
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Ответ:
а) d = 3
б) d = - (15/17)
в) d = - (7/55)
Объяснение:
d = (an - a₁) : (n - 1)
а) d = (an - a₁) : (n - 1) = (37 - 16) : (8 - 1) = 21 : 7 = 3
б) d = (an - a₁) : (n - 1) = (-11 - 4) : (18 -1) = - (15/17)
в) d = (an - a₁) : (n - 1) = (-2,3 - 0,5) : (23 -1) = (-2,8) : 22 = - (28/220) = - (7/55)
Ответ:
а) d = 3
б) d = - (15/17)
в) d = - (7/55)