Question

(-1+1/3)(-1+1/8)(-1+1/15)....(-1+1/9800) . Mong các bạn làm giúp mk!

Answer 1

Nhận xét:

-1+1/3= 0/3=0

-1+1/8= 0/8=0

-1+1/15= 0/15=0

........

-1+1/9800=0/9800=0

Do đó ta có:-1+1/3+ -1+1/8+ -1+1/15....-1+1/9800

=0+0+0....+0

=0

Answer 2

-1+1/3= 0/3=0

-1+1/8= 0/8=0

-1+1/15= 0/15=0

........

-1+1/9800=0/9800=0

Do đó ta có:-1+1/3+ -1+1/8+ -1+1/15....-1+1/9800

=0+0+0....+0

=0

Answer 3

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