the 13th term of an ap is first term and common difference respectively are 3/2 and 2/3
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Answered by
4
Answer:
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Step-by-step explanation:
In the AP the 13th term = a+12 d = 27, or
a = 27-12d …(1)
The 7th term = a+6d = 3(a+d) = 3 times the 2nd term
a+6d = 3(a+d)
a+6d = 3a+3d, or
2a = 3d, or
a = (3/2)d …(2)
Equate (1) and (2)
27-12d = (3/2)d, or
54–24d = 3d, or
27d = 54, or
d = 2, so a = 3.
The first term = 3 and the common difference = 2.
Answered by
1
Answer:
19/2
Step-by-step explanation:
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