210.13 + 210.65 = 210(13 + 65) = 210.78
28.104 = 28(26 + 25 + 23) = 214 + 213 + 211
210.13 + 210.65 = 210(13 + 65) = 210.78
28.104 = 28(26 + 25 + 23) = 214 + 213 + 211
B = \(\dfrac{2^{10}.13+65.2^2}{2^8.104}\)
A=\(\dfrac{3^{10}.11+3^{10}.5}{3^9.2^4}\)
B=\(\dfrac{2^{10}.13+2^{10}.65}{2^8.104}\)
C=\(\dfrac{72^3.54^2}{108^4}\)
D=\(\dfrac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
1) (3^2-2).(x-12)+35=5^2+279.3^2
2) (2^2-1).(x-1)=2^2+(6^2+2^6):(5^2.2)
3) (2^2+1).(x+14)=5^2.4+(2^5+3^2+7^2)
4) 2^2.3.(x+5)-6^2=(2^3+2^2).2^2
5) 3^2.(x+1)-3=2^3+(7^2.2).14
6) (2^2+3).(x-5)+14=5^2+124:2^2
7) 260:(x+4)=5.(2^3+5)-3.(3^2+2^3)
8) 75:(x+2)=53-(3^2+4^2).2^2
Mong mọi người giúp mình với
a=1+2^2/3^2+2^2/5^2+2^2/7^2+...+2^2/2009^2 So sanh a với 3 giúp tớ với kaka :((
a=1+2^2/3^2+2^2/5^2+2^2/7^2+...+2^2/2009^2 So sanh a với 3 giúp tớ với kaka :((
Cho biểu thức A=2²+2³+2⁴+2⁵+2⁶+2⁷+2⁸
B=2^50-2^49-2^48-2^47-...-2^2-2
100^2-99^2+98^2-...-3^2+2^2-1^2
So sánh P = \(\dfrac{1}{1^2+2^2}+\dfrac{1}{2^2+3^2}+...+\dfrac{1}{10^2+11^2}\) với \(\dfrac{9}{20}\)