Tính 2016^0+3500:[2^3+(3^3*2-12)
tính
a/ 82 . 8 . 18 =
b/2.22.23.12.120
c/82.13
d/72.13
e/52.((1999)0)2016
f/42.12016
g/92.20160
h/102.20160
giải rõ ràng ra giúp mik nha
nhiều thế!!!
a/82.8.18=83.1=512
b/2.22.23.12.120=26.1.1=64
c/82.13=64.1=64
d/72.13=49.1=49
e/52.(19990)2016=52.12016=25.1=25
f/42.12016=16.1=16
g/92.20160=81.1=81
h/102.20160=100.1=100
312:39+22.23-20160
\(3^{12}\div3^9+2^2.2^3-2016^0\)
\(=3^{12}\div3^9+2^2.2^3-0\)
\(=531441\div19683+4.8-0\)
\(=27+32-0\)
\(=59-0\)
\(=59\)
tính M= (-3)^0 + (-3)^1 +(-3)^2 +.....+ (-3)^2016
Nhân cả hai vế của A với 3 ta được :
3A = 3.[ ( - 3 )0 + ( - 3 )1 + ( - 3 )2 + ... + ( - 3 )2016 ]
=> 3A = ( - 3 )1 + ( - 3 )2 + ( - 3 )3 + ... + ( - 3 )2007
Trừ A cho 3A ta được :
A - 3A = [ ( - 3 )0 + ( - 3 )1 + ( - 3 )2 + ... + ( - 3 )2016 ] - [ ( - 3 )1 + ( - 3 )2 + ( - 3 )3 + ... + ( - 3 )2017 ]
=> - 2A = 1 - ( - 3 )2017
=> A = ( 1 + 32017 ) : ( - 2 )
Tính:
1) A= {136-32. [25:25+17. 20160) :3 -3!]} : 102.52
2) B= 203-150 [(24- 92 : 32).23 +40] : (52.22) +23.6
3)C= {(125:52+15) - [120: (12.32+12)]} .13-22
tìm x biết 2016 x +(7/12+4/21+2/24+11/30+3/41+15/56)-(2/3+2/4+2/5)=0
Bài 1: Cho a,b,c thỏa mãn (a+b-c)/c=(b+c-a)/a=(c+a-b)/b
tính P=(1+b/a)*(1+c/b)*(1+a/c)
Bài 2: Cho a+b+c=0
tính B=((a^2+b^2-c^2)*(b^2+c^2-a^2)*(c^2+a^2-b^2))/(10*a^2*b^2*c^2)
Bài 3: cho a^3*b^3+b^3*c^3+c^3*a^3=3*a^3*b^3*c^3
tính M(1+a/b)*(1+b/c)*(1+c/a)
Bài 4: cho 3 số a,b,c TM a*b*c=2016
tính P=2016*a/(a*b+2016*a+2016) + b/(b*c+b+2016) + c/(a*c+c+1)
Bài 5: cho a+b+c=0
tính Q=1/(a^2+b^2-c^2) + 1/(b^2+c^2-a^2) + 1/(a^2+c^2-b^2)
Baifi 1: Tính:
P= \(\dfrac{3^{2016}-6^{2016}+9^{2016}-12^{2016}+15^{2016}-18^{2016}}{-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}}\)
\(P=\frac{3^{2016}-6^{2016}+9^{2016}-12^{2016}+15^{2016}-18^{2016}}{-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}}\)
\(=\frac{\left(1.3\right)^{2016}-\left(2.3\right)^{2016}+\left(3.3\right)^{2016}-\left(4.3\right)^{2016}+\left(5.3\right)^{2016}-\left(6.3\right)^{2016}}{-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}}\)
\(=\frac{1^{2016}.3^{2016}-2^{2016}.3^{2016}+3^{2016}.3^{2016}-4^{2016}.3^{2016}+5^{2016}.3^{2016}-6^{2016}.3^{2016}}{-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}}\)
\(=\frac{-3^{2016}\left(-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}\right)}{-1^{2016}+2^{2016}-3^{2016}+4^{2016}-5^{2016}+6^{2016}}\)
\(=-3^{2016}\)
Tính: S = 1 - 2 + 3 - 4+ ... + 197 -198 + 199 -200
Tính: P = (-1) + (-2) + (-3) + .... + (-99) + (-100)
Tìm các số nguyên x, biết:
a) x2 - 1 = -54 - 43 - 32 - (-6971) - (-20170)
b) 7(x-1) < 0 và x > -11
c) -10(x - 2016) - 7(x - 2016) - 6(x-2016) - 4(x -2016) - 3(x - 2016) = -30
Tính:
a) A= (-\(\frac{1}{3}\))^2+(\(\frac{-2}{5}.125-\left(-\frac{95}{14}\right)\)^0+(-1)^2016
b) B= \(\left(-\frac{2}{3}\right)\)^3-(-1)^2018+\(\left(-\frac{3456}{101}\right)\)^0+\(\frac{3}{12}\)