The 2nd term and 6th term of an A.P. are 6 and 18 respectively. Find its
first term and common difference.
Find the AP whose th term is 25 and 19th term is 77. (U. P. 1968)
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Answer:1 st term-3 and common difference is 3
Step-by-step explanation:
Answered by
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Step-by-step explanation:
Q.(1)
ans: a(2) = 6
a + d = 6 ----(1)
a(6) = 18
a + 5d = 18 -----(2)
समी.(2) - (1) से
4d = 12
d = 3
a = 3
A.P. का first term (a) = 3
& common difference(d) = 3
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