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it says to find the 27th and 34th term of the given sequence 31, -21, -11, -1, 9....
but i can't seem to find the common difference.
It pays to keep an open mind, but not so open your brains fall out. - Carl Sagan.
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Hi,
This isn't an Arithmetic Progression, nor Geometric Progression, nor Harmonic Progression. No logical series too. It appears there is a mistake in the problem.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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If the 31 is changed to -31, then you have a good problem.
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