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If F(x)=1/2x(x+1), evaluate the following:1) F(1)2) F(2)3) F(3)4) F(x-1)5) F(5)-F(4)6) F(7)-(F6)7) F(x+1)8) F(x)-F(x-1)9) F(x²)
This is simple arithmetic. You need to master arithmetic perfectly before studying functions.
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