the sum of three consecutive terms of AP is 48 and the product of first and last is 252 then d=?
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Answered by
36
Answer:
Step-by-step explanation:
Hey !! It's simple
Let three consecutive terms of an AP be ( A - D ) , A and ( A + D ).
According to the question
Sum of three consecutive terms = 48
A - D + A + A + D = 48
3A = 48
A = (48/3) = 16.
First term ( A ) = 16.
Again,
Product of first term and last term = 252
( A - D ) × ( A + D ) = 252
( A)² - ( D)² = 252
(16)² - ( D )² = 252
(D)² = 256 - 252
D² = 4
D = ✓4 = 2
Hence,
Common difference ( D ) = 2.
Answered by
3
Answer:
answer for this is ,+-2
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