\(\dfrac{2^{13}+2^5}{2^{10}+2^2}=\dfrac{2^5\left(2^8+1\right)}{2^2\left(2^8+1\right)}=\dfrac{2^5}{2^2}=2^3=8\)
\(\dfrac{2^{13}+2^5}{2^{10}+2^2}=\dfrac{2^5\left(2^8+1\right)}{2^2\left(2^8+1\right)}=\dfrac{2^5}{2^2}=2^3=8\)
Tính và học thuộc 1^2 ; 2^2 ; 3^2 ;4^2 ;5^2 ; 6^2 ; 7^2 ; 8^2 ; 9^2 ; 10^2 ; 11^2 ; 12^2; 13^2;14^2 ;15^2
a)-|-5+3-7|-|-5+7| b)24-(72-13+24)-(72-13) c)|4-9-5|-(4-9-5)-15+9 d)|-5+7-8|-(-5+7-8) e) (-20+10-3)-(-20+10)+27 f)13-[5-(4-5)+6]-[3-(2-7)] g) (14-12-7)-[-(-3+2)+(5-9)] h)14-23+(5-14)-(5-23)+17 |
|
Bài 1 : Tính :
a)-|-5+3-7|-|-5+7
b)24-(72-13+24)-(72-13)
c)|4-9-5|-(4-9-5)-15+9
d)-20-(25-11+8)+(25-8+20)
e)|-5+7-8|-(-5+7-8)
f) (-20+10-3)-(-20+10)+27
g)13-[5-(4-5)+6]-[3-(2-7)]
h) (14-12-7)-[-(-3+2)+(5-9)]
i)14-23+(5-14)-(5-23)+17
a) 2/3 + -1/6
b) 5/4 - 3/16
c) 1/2 + (4/5 - 1/2)
d) (0.5 - 3/4) × ( 1/5 - 0.4)
e) 3/5 × 7/13 - 3/5 . 18/13
Tìm x bt
A:|x+75%|= 2/1/5
B: (x+1/2). (2/3-2x)= 0
C: | 2x -1/3|+ 5/6= 1
D: x+2/5= 7/12-1/1/4
E: (x+ 2/3). (-3/5 -2x)= 0
F: (2/4/5 x- 50): 2/3=51
G: 2/5+ 3/5. (3x- 3,7)= -53/10
H: 7/9:( 2+3/4x)+ 5/9= 23/27
(23 . 94 + 53 . 45): ( 92 .10-92)
a) 2+4+6+8+10+....+100
b) 1+4+7+10+13+...+301
Em học dốt toán T^T Cảm ơn những nguuwoif đã trả lời giúp em:v
Các bạn ơi giúp mk với
(x-13)^2.(5-y)^3=0
Help mk nha gấp lắm
2³.5² bằng bao nhiêu: A.60 B.10⁶ C.100 D.1000