If first term is 3, second term is 5 and fourth term is 25. Find the third term *
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If first term is 3, second term is 5 and fourth term is 25. Find the third term *
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Answer:
Let be the common difference, and let be the second term. The first three terms are, in order, .
The sum of the first three terms is .
Now we know that the second term is 37. The fourth term is the second term plus twice the common difference: . Since the second and fourth terms are 37 and 49, respectively, we can solve for the common difference.
The common difference is 6. The first term is .
Answer:
let be the common difference and let be the second term. the first three terms is.
now we now that the second term is 37. the fourth term is the second term + twice the common difference .. since the second and fourth term are 37 and 49 respectively, we can solve for the common difference.
the common difference is 6.