Mathematics, 19.09.2021 09:20 djderokey7171

The 4th term of an AP is 6. If the sum of the 8th and 9th terms is -72, the com. mon difference is:

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The 4th term of an AP is 6. If the sum of the 8th and 9th terms is -72, the com. mon difference is:...

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The 4th term of an AP is 6. If the sum of the 8th and 9th terms is -72, the com. mon difference is:​

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The 4th term of an AP is 6. If the sum of the 8th and 9th terms is -72, the com. mon difference is: