Câu hỏi của Ái Khuyên Lâm

Question

cÂu nÀy rối qá

(0,25)^p=Phân Số 1phần256

Shd trang 29 C Hoạt động luyện tập !!

Nguyễn Thị Hồng Nhung · Accepted Answer

Tính		So sánh
$\left(-\dfrac{3}{4}\right)^3=\dfrac{-27}{64}$	$\left(\dfrac{\left(-3\right)}{4}\right)^3=-\dfrac{27}{64}$	Bằng nhau
$\dfrac{\left(2,4\right)^2}{2^2}=\left(\dfrac{2,4}{2}\right)^2=1,2^2=\dfrac{36}{25}$	$\left(\dfrac{2,4}{2}\right)^2=\dfrac{36}{25}$	Bằng nhau

Câu trả lời:

Tính		So sánh
$\left(-\dfrac{3}{4}\right)^3=\dfrac{-27}{64}$	$\left(\dfrac{\left(-3\right)}{4}\right)^3=-\dfrac{27}{64}$	Bằng nhau
$\dfrac{\left(2,4\right)^2}{2^2}=\left(\dfrac{2,4}{2}\right)^2=1,2^2=\dfrac{36}{25}$	$\left(\dfrac{2,4}{2}\right)^2=\dfrac{36}{25}$	Bằng nhau

Ái Khuyên Lâm · Answer

Câu trả lời:

x	-3	-1	0	2	7
y	1	3,5	-1	-4	-2

x	1	2	-1	\(\dfrac{4}{3}\)	-2
y	3	6	-3	4	-6

x	-4,5	-3	0	1,5	2,25
y	1,35	0,9	0	-0,45	-0,675

x	-5	-1	-2	-3,5	6,8
y	12,5	2,5	5	-8,75	-16,32

Tính		So sánh
\(\left(-\dfrac{3}{4}\right)^3=\dfrac{-27}{64}\)	\(\left(\dfrac{\left(-3\right)}{4}\right)^3=-\dfrac{27}{64}\)	Bằng nhau
\(\dfrac{\left(2,4\right)^2}{2^2}=\left(\dfrac{2,4}{2}\right)^2=1,2^2=\dfrac{36}{25}\)	\(\left(\dfrac{2,4}{2}\right)^2=\dfrac{36}{25}\)	Bằng nhau

x	-2	-1,5	-1	0	1	2
y = 2x

x	-2	-1,5	-1	0	1	2
y = 2x	-4	-3	-2	0	2	4