Question

tính bằng cách thuận tiện nhất

(1+3+5+7+..........+2007).(125125.127-127127.125)

Answer 1

=(1+3+5+7+...+2007).0

=0

Answer 2

=(1+3+5+7+........+2007).(125125.127-127127.125)

=(1+3+5+...........+2007).      0

=0

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Answer 3

(1+3+5+7+.......+2007).(125125.127-127127.125)

=(1+3+5+7+........+2007).0

=0