Asked by Angeles
The third term of an A.P is 20, the fourteenth term is 64. Find the first term, the common difference and the nth term
Answers
Answered by
Steve
a+2d = 20
a+13d = 64
11d = 44
d=4
a=12
Tn = 12 + (n-1)*4 = 8+4n
a+13d = 64
11d = 44
d=4
a=12
Tn = 12 + (n-1)*4 = 8+4n
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