Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(=\dfrac{3^{10}.3.11+\left(-1\right).3^{11}.\left(-1\right).3.7}{3^9.2^5}\\ =\dfrac{3^{11}.11+3^{12}.7}{3^9.2^5}\\ =\dfrac{3^9\left(3^2.11+3^3.7\right)}{3^9.2^5}\\ =\dfrac{9.11+27.7}{2^5}\\ =\dfrac{99+189}{32}\\ =\dfrac{288}{32}=9\)
A = \(\dfrac{3^{10}.33+\left(-3\right)^{11}.\left(-21\right)}{3^9.2^5}\)
A = \(\dfrac{3^{10}.3.11-3^{11}.\left(-21\right)}{3^9.2^5}\)
A = \(\dfrac{3^{11}.11+3^{11}.21}{3^9.2^5}\)
A = \(\dfrac{3^{11}.\left(11+21\right)}{3^9.2^5}\)
A = \(\dfrac{3^{11}.32}{3^9.32}\)
A = 32
A = 9
175 - (-25) + 62 -(1200+62)
= (175+25)+(62-1200-62)
= 200 + (-1200)
= -1000
\(\dfrac{62.63+75}{12+62.64}=\dfrac{62.63+63+12}{12+62.64}=\dfrac{62.64+12}{12+62.64}=1\)
\(\dfrac{62\times63+75}{12+62\times64}=\dfrac{62\times\left(64-1\right)+63+12}{12+62\times64}=\dfrac{62\times64-62+63+12}{12+62\times64}=\dfrac{62\times64+1+12}{12+62\times64}=1\)
39\(\times\)25 + 87\(\times\)61 + 62
= 975 + 5307 + 62
= 6282 + 62
= 6344