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Find the missing specified terms in the following sequence Arithmetic: a1, a2, 7, a4, ... , a7, 82, ...
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Find the missing specified terms in the following sequence Arithmetic: a1, a2, 7, a4, ... , a7, 82, ...
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Jul 22, 2019
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Find the missing specified terms in the following sequence
Arithmetic: a1, a2, 7, a4, ... , a7, 82, ...
Mathematics
high-school
Phreeskier
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third term a3 = 7 and 8th term a8 = 82
8th term - third term = 5d where d is the common difference:-
5d = 82-7 = 75
d = 15
so a2 = 7-15 = -8
and a1 = -8 - 15 = -23
a4 = 7 + 15 = 22
a5 = 37
a6 = 52
a7 = 67
Linkerro
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Jul 28, 2019
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