Question

tính giá trị biểu thức

a) A= \(\dfrac{16^5.15^5}{2^{10}.3^5.5^4}\)

b) B= \(\dfrac{2^{15}.3+2^{19}.10}{2^{12}.26}\)

c) C= \(\dfrac{9^5.30^3}{3^{15}.5^3.6^2}\)

d) D= \(\dfrac{3^{11}.4+3^{11}.5}{3^3.9^5}\)

giúp mik mik sẽ tik cho nhé

 

Answer 1

nhớ cho cả hướng dẫn giải

 

Answer 2

a: \(A=\dfrac{16^5\cdot15^5}{2^{10}\cdot3^5\cdot5^4}=\dfrac{2^{20}\cdot3^5\cdot5^5}{2^{10}\cdot3^5\cdot5^4}=2^{10}\cdot5=5120\)

b: \(B=\dfrac{2^{15}\cdot3+2^{19}\cdot10}{2^{12}\cdot26}=\dfrac{2^{15}\left(3+2^4\cdot10\right)}{2^{13}\cdot13}=2^2\cdot\dfrac{163}{13}=\dfrac{652}{13}\)

Answer 3

Tính bình thường dc ko bn

Answer 4

Answer 5

a. \(\dfrac{16^5.15^5}{2^{10}.3^5.5^4}\)

= \(\dfrac{1048576.759375}{1024.243.625}\)

= \(\dfrac{7962624.10^{11}}{155520000}\)

= 5120000000

Có thể kết quả mik sai mong bn thông cảm