Toán Lớp 7: đúng nhất 60 point
A=(2^12\times3^5-4^6\times9^2)/((2^2\times3)^6+8^4\times3^5)-(5^10\times7^3-25^5\times49^2)/((125\times7)^3+5^9\times14^3)
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Toán Lớp 7: đúng nhất 60 point
A=(2^12\times3^5-4^6\times9^2)/((2^2\times3)^6+8^4\times3^5)-(5^10\times7^3-25^5\times49^2)/((125\times7)^3+5^9\times14^3)
Comments ( 2 )
A=(2^12xx3^5-(2^2)^6xx(3^2)^2)/((2^2xx3)^6+(2^3)^4xx3^5)-(5^10xx7^3-(5^2)^5xx(7^2)^2)/((5^3xx7)^3+5^9xx(7xx2)^3)
A=(2^12xx3^5-2^12xx3^4)/((2^2)^6 xx3^6+2^12xx3^5)-(5^10xx7^3-5^10xx7^4)/((5^3)^3xx7^3+5^9xx7^3xx2^3)
A=(2^12xx3^4xx(3-1))/(2^12xx3^6+2^12xx3^5)-(5^10xx7^3xx(1-7))/(5^9xx7^3+5^9xx7^3xx2^3)
A=(2^12xx3^4xx2)/(2^12xx3^5xx(3+1))-(5^10xx7^3xx(-6))/(5^9xx7^3xx(1+2^3))
A=(2^13xx3^4)/(2^14xx3^5)-(5^10xx7^3xx(-6))/(5^9xx7^3xx9)
A=(1xx1)/(2xx3)-(5xx1xx(-6))/(1xx1xx9)
A=1/6+30/9
A=1/6+10/3
A=1/6+20/6
A=21/6
A=7/2
Vậy A=7/2