標題:
各位知識朋友 , 入黎幫我手 ar !!! ( 數學 F.1 ) (54)
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發問:
各位知識朋友 , 入黎幫我手 ar !!! 我有幾條數學問題唔識 , 幫手解答 ar( 數學 F.1 )!!!!!!!!!!!!!!! 1.Write down the type of sequences it belongs to. (a)2.10.50.250 (b)-2.-8.-14.-20 (c)-1.3.-9.27 (d)2/3.7/6.5/3.13/6
最佳解答:
1.Write down the type of sequences it belongs to. (a)2.10.50.250 (b)-2.-8.-14.-20 (c)-1.3.-9.27 (d)2/3.7/6.5/3.13/6 a)5n b)n+6 c)-3n d)n+3/n
其他解答:
(a)2.10.50.250 2x5=10,10x5=50,50x5=250 (b)-2.-8.-14.-20 -2-6=-8,-8-6=-14,-14-6=-20 (c)-1.3.-9.27 -1x-3=3,3x-3=-9,-9x-3=27 (d)2/3.7/6.5/3.13/6 4/6+3/6=7/6 7/6+3/6=10/6=5/3 10/6+3/6=13/6|||||(a)2.10.50.250 2x5=10 10x5=50 50x5=250 (b)-2.-8.-14.-20 -2+(-6)= -8 -8+(-6)= -14 -14+(-6)=-20 (c)-1.3.-9.27 -1x(-3)=3 3x(-3)=-9 -9x(-3)=27 (d)2/3.7/6.5/3.13/6|||||(a)1250 (b)-26 (c)-81 (d)唔知