Find the firs four term of an A.P whose first term is 3x-y & comman di

1.	Find the firs four term of an A.P whose first term is 3x-y & comman difference is x-y
Answer» {tex}a_1 = 3x + y {/tex}and {tex}d = x - y{/tex}{tex}a_2 = a_1 + d = 3x + y + x - y = 4x{/tex}{tex}a_3 = a_2 + d = 4x + x - y = 5x -y{/tex}{tex}a_4 = a_3 + d = 5x - y + x - y = 6x -2y{/tex}So, the four terms are {tex} 3x + y, 4x, 5x - y {/tex} and{tex} 6x - 2y{/tex}.

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