\(=\frac{106}{105}.\frac{107}{106}.\frac{108}{107}.\frac{109}{108}.\frac{110}{109}\)
\(=\frac{106.107.108.109.110}{105.106.107.108.109}\)
\(=\frac{110}{105}=\frac{22}{21}.\)
Tính nhanh:
( 1 + 1/105 ) x ( 1 + 1/106 ) x ( 1+ 1/107 ) x ( 1+ 1/108 ) x ( 1+ 1/109 )
Tính nhanh:
( 1 + 1/105 ) x ( 1 + 1/106 ) x ( 1+ 1/107 ) x ( 1+ 1/108 ) x ( 1+ 1/109 )
tính nhanh
(1+1/105)x(1+1/106)x(1+1/107)x(1+1/108)x(1+1/109)
tính nhanh
(1+1/105)*(1+1/106)*(1+1/107)*(1+1/108)*(1+1/109)
tính nhanh
763 x 28 + 1364 x 21 + 14 x 474 + 42 x 318 =............................................................................................................................................................................................................................................................................................................................................................................................................
312312/131131 x 524524/104104 =............................................................................................................................................................................................................................................................................................................................................................................................................
( 1 + 1/105 ) x ( 1 + 1/106 ) x ( 1/107 ) =....................................................................................................................................................................................................................................................................................................................................................................................................
143x14x30/35x78x44 =....................................................................................................................................................................................................................................................................................................................................................................................................
1919/2323 x 464646/747474 x 37/19 = ......................................................................................................................................................................................................................................................................................................................................................................................................
hãy nói ra 9 số có hàng trăm sau đây. a,100 ,200 ,300 400 500 600 700 800 900. b 1 2 3 4 5 6 7 8 9 . c 101 102 103 104 105 106 107 108 109
Giúp mình nhé :
Đề bài : Tính tích
1 x 3 x 5 x 7 x ... x 107 x 109 x 111
( 1+2+3+4+5+6+7.....+108+109)x(2014x3-2014x2-2014)
( 1+ 2+ 3+ 4+ 5+ 6+ 7......+ 108+ 109 ) x( 2014x 3- 2014x 2- 2014)
