Gyus my solution is not correct..plss tell my mistake Ques and sol. Is in attachment
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Gyus my solution is not correct..plss tell my mistake Ques and sol. Is in attachment
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Answer:
The Answer is 1
Step-by-step explanation:
U can see the attachments i hav sent with this answer and verify the mistake
In A.P.
A(7) = a + 6d = 1/9
9a + 54d = 1 --------(1)
A(9) = a + 8d = 1/7
7a + 56d = 1
7a = 1 - 56d
a = (1 - 56d)/7
a = 1/7 - 8d -----(2)
From eq.(1) & eq. (2)
9( 1/7 - 8d ) + 54d = 1
9/7 - 72d + 54d = 1
9/7 - 18d = 1
18d = 9/7 - 1
18d = 2/7
9d = 1/7
d = 1/63
then , a = 1/7 - 8/63
a = 9/63 - 8/63
a = 1/63
Now , A(63) = a + 62d
= 1/63 + 62/63
= 63/63
= 1