Các câu hỏi tương tự
Tính:
a) [\(\left(-2,7\right)^4\)]5 - [(-2,7)2 ] 10
b) (-0,5)5 : (-0,5)3 - \(\left(\dfrac{17}{2}\right)^7\) : \(\left(\dfrac{17}{2}\right)^6\)
c) (814 : 412) : (166 : 82)
Tìm x
a) (1/32)x = (1/2)6
b) 49/81 = (-7/9)x
c) 1/27 = ( 1/9 )x
Tìm x biết a) 2x x 32 = 64 b) (1/3)x - 1 = 1/81 c) (-7)x - 1 / 49 = -49
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Tìm x:
a) (3/5)^5 * x = (3/7)^7
b) (-1/3)^3 * x = 1/81
c) (x - 1/2)^3 = 1/27
d) (x+1/2)^4 = 16/81
Tìm x biết:
a) 2.3x - 405 = 3x - 1
b) (x + 1) / 65 + (x + 3) / 63 = (x + 5) / 61 + (x + 7) / 59
c) (1 / 2) 3x - 1 = 1 / 32
d) ( 1/81 )x . 272x = (-9)4
Viết tọa độ điểm A, B, C, D, E, F, G trong hình 32.
a) [1+2/3-1/4].[4/5-3/4] mũ 2
b)2:[1/2-2/3] mũ 2
c)(1/2)mũ x =1/32
d)343/125=(7/5) mũ x
e)(-3)/81 mũ x = -27
g) 8 mũ x . 2 mũ x =4
1)tim x biet rang:
a)3^x-1=1/243
b)2^x+2^x+3=144
c)81^-2x.27x=9^5
2)tim tiep so ghang thu 5 cua day so sau:-1/a^2;2/a^3;-6/a^4;24/a^5;...
3)tim so tu nhien x biet :
a)4^x+4^x+3=4160
b)2^x-1+5.2^x-2=7/32
Cho
11+11=4
12+12=6
13+13=8
14+14=?