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  4. 1]The first term of an AP is -8 and the ratio of the 7th term...

1]The first term of an AP is -8 and the ratio of the 7th term...

1]The first term of an AP is -8 and the ratio of the 7th term to 9th term is 5:8
a) Calculate the common difference.
b) Find the sum of the first 20 terms.

2] If z^2 kz (3/8) is a perfect square then k is what?
In Mathematics
1 Answers Available
Asked by Kayode Oluwafemi on 9th March, 2021
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