Câu hỏi của ✰๖ۣۜLêღ๖ۣۜPɦươηɠღ๖ۣۜUүêη...

Question

tính giá trị của biểu thức sau:

A=$\frac{2^{10}.2^{13}-2^{21}.20}{2^{24}}$

Y · Accepted Answer

$A=\frac{2^{23}-2^{21}\cdot2^2\cdot5}{2^{24}}$

$A=\frac{2^{23}-2^{23}\cdot5}{2^{24}}$

$A=\frac{2^{23}\left(1-5\right)}{2^{24}}$

$A=\frac{-\left(2^{23}\cdot2^2\right)}{2^{24}}=-\frac{2^{25}}{2^{24}}=-2$Câu trả lời: $A=\frac{2^{23}-2^{21}\cdot2^2\cdot5}{2^{24}}$

$A=\frac{2^{23}-2^{23}\cdot5}{2^{24}}$

$A=\frac{2^{23}\left(1-5\right)}{2^{24}}$

$A=\frac{-\left(2^{23}\cdot2^2\right)}{2^{24}}=-\frac{2^{25}}{2^{24}}=-2$

Violympic toán 6