The value of 1/6 + 1/12 + 1/20 + .......... + 1/90 ?
nope:
hey plzz
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Answered by
3
1/6+1/12+1/12+1/20+1/30+1/42+1/56+1/72+1/90
= (1-1/2)+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)+(1/8-1/9)+
(1/9-1/10)+(1/10-1/11)+(1/11-1/12)
=1-1/12
=11/12 or 0.91666666
plzzzzzzzzzz mark as the best
= (1-1/2)+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)+(1/8-1/9)+
(1/9-1/10)+(1/10-1/11)+(1/11-1/12)
=1-1/12
=11/12 or 0.91666666
plzzzzzzzzzz mark as the best
Answered by
2
1/6+1/12+1/12+1/20+1/30+1/42+1/56+1/72+1/90
=1-1/12
=11/12
=1-1/12
=11/12
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