3rd term of an ap is (4x-2y) and 9th term of an ap is (10x-8y) find the common difference
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given,
a3 = 4x - 2y
and a9 = 10x - 8y.
=> a + 2d = 4x - 2y. ...(1)
a + 8d = 10x - 8y. ...(2)
subtracting 1 from 2,
6d = 6x - 6y
=> d = x - y.
therefore,
common difference is x - y
a3 = 4x - 2y
and a9 = 10x - 8y.
=> a + 2d = 4x - 2y. ...(1)
a + 8d = 10x - 8y. ...(2)
subtracting 1 from 2,
6d = 6x - 6y
=> d = x - y.
therefore,
common difference is x - y
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