find the first 4 terms of an ap whose first term is minus 2 and common difference is -2
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first term is -2
so, A2=a+d
=-2+-2
=-4
similarly;
next terms are;-6,-8,-10
becoz,
A3=a+2d
so, A2=a+d
=-2+-2
=-4
similarly;
next terms are;-6,-8,-10
becoz,
A3=a+2d
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