Find the 1st four terms of the ap whose 1st term is 3x+y and common difference is x-y
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Step-by-step explanation:
1st term=3x-y
2 nd term = diff +1st term
= x-y+3x+y
=4x
3rd term = diff + 2nd term
=x-y+4x=5x-y
4 th term = diff +3rd term
= x-y+5x-y=6x-2y.
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