a) [-2008*57+1004(-86)]/[32*74+16*(-48)]
b)1+2-3-4+5+6-7-8+9+10-...+2006-2007-2008+2009
a) [ -2008 x 57 + 1004 x (-86) ] : [ 32 x 74 + 16 x (-48) ]
b) 1 + 2 - 3 - 4 + 5 + 6 - 7 - 8 + 9 +10 - ......................... + 2006 - 2007 - 2008 + 2009
Tính:
B = [-2008. 57 + 1004. (-86) : [32. 74] + 16. (-48)
C = 75. (2 - 128) - 128. (-75)
D = \(\left(1-\frac{1}{2}\right).\left(1-\frac{1}{3}\right).\left(1-\frac{1}{4}\right)...\left(1-\frac{1}{2018}\right)\)
E = \(\frac{1}{4.9}+\frac{1}{9.14}+\frac{1}{14.19}+\frac{1}{64.69}+\frac{1}{69}.74\)
Tính nhanh (-2008.57+100.(-86)):(32:74+16.(-48))
ai giúp mình với
-2008.57+1004.(-86)/32.74+16.( -48)
tính: a/(-31).13+(-91).5+131+(-5).9
b/[-2008.57+1004.(-86)]:[32.74+16.(-48)]
Tính: a) \(\frac{-2008.57+1004.\left(-86\right)}{32.74+16.\left(-48\right)}\)
Tính \(B=\frac{-2008.57+1004.\left(-86\right)}{32.74+16.\left(-48\right)}\)
tính
a)[-2008/57+1004-(-84)]/[32.74+16.(-48)]
b)(4^6.9^5+6^9.120)/(8^4.3^12.6^11)
c)(3^2016.11+3^2016.5)/(3^2015.5)
d)1+2-3-4+5+6-7-8+...+2012-2013-2014+2015+2016
cần gấp trước 8:00
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