Asked by Eny
If the 7th term of an AP is twice the third term and the sum of the first four terms is 42
Answers
Answered by
Steve
I assume you're looking for a and d, eh?
a+6d = 2(a+2d)
(4/2)(2a+3d) = 42
Now just solve for a and d.
a+6d = 2(a+2d)
(4/2)(2a+3d) = 42
Now just solve for a and d.
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