A=5^10 . 7^3 -49^2 . 25^2 / (125.7)^3 + 5^9 . 14
B=5^10 . 7^3 -^2 . 25^2 / (125.7)^3 + 5^9 . 14
212.35-46.92/(22.3)6 - 510.73-255.492/(125.7)3+59.143
211 . 33 -46 . 9/(2.3)6 + 84 . 36 - 510 .77 - 253 . 49/ (125.7)7 + 59 .14
A= 212.35-46.92 / (22.3)6+84.35 - 510.73-255.492 / (125.7)3.59.143
B=212.35-46.92/(22.3)+84.35 - 510.73-255.492/(125.7)3+59.143
a=2^12.3^5-2^12.3^4/2^12.3^6+2^12.3^5 - 5^10.7^3-5^10.7^4/5^9.7^3+5^9.7^3.2^3
a=2^12.3^4.(3-1)/2^12.3^5.(3+1)-5^10.7^3.(1-7)/5^9.7^3.(1+8)
a=2/12-30/9
a=1/6-10/3=-19/6
B=212. 35- 46. 92/ (22.3)6 + 84. 35 - 510.73-255. 492/ (125.7)3+59. 143
1,Tính giá trị biểu thức :
A= 212 . 35 - 46 . 92 / (22 . 36 + 84 . 55) - 510 . 73 - 255 . 492 / (125.7)3 + 59 .143
Rút gọn:
\(A=\dfrac{2^{12}.3^5-4^6.9^2}{\left(2^2.3\right)^6+8^4.3^5}-\dfrac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.\left(14\right)^3}\)
\(A=\dfrac{2^{12}.3^5-\left(2^2\right)^6.\left(3^2\right)^2}{\left(2^2\right)^6.3+\left(2^3\right)^4.3^5}-\dfrac{5^{10}+7^3-\left(5^2\right)^5.\left(7^2\right)^2}{(5^3).7^3+5^9.\left(7^2\right)^3}\)
\(A=\dfrac{2^4.1-2.3^3}{1.1+1.1}-\dfrac{5+1-5.1}{1.1+1.7}\)
\(A=\dfrac{2^4-54}{2}-\dfrac{1.1}{2\cdot7}\)
\(A=(2^3-54)-\dfrac{1}{14}\)
\(A=\left(-46\right)-\dfrac{1}{14}\)
5^10*7^3-25^5*49^2/(125*7)^3+5^9*14^3