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M là trung điểm của AB
=>AM=MB=76:2=38 (cm)
Vì N là trung điểm của AM
=>NA=MN=38:2=19(cm)
Trên tia AB ta có :
AB=76cm;AN=19cm
=> N nằm giữa A và B
TA có :
AN+NB=AB
=>NB=AB-AN
=>NB=76-19
=>NB=57
Độ dài đoạn AM =MB là:
76:2=38(cm)
Độ dài đoạn NM là:
38:2=19(cm)
Độ dài đoạn NB là:
38+19=57(cm)
Câu 1 : 900
Câu 2 : 10
Câu 3 : 19
Câu 4 : 596
Câu 5 : 588
Câu 6 : 864
Câu 7 : 32
Câu 8 : 834
Câu 9 : 152
Câu 10 : 816
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Tìm y:
3 x y = 6.
Y đây.
Tìm x:
4 x x = 20.
X đây.
#Japhkiel#

-2 or 2
VÌ LỚP 3 CHẮC LÀ 2
k nhé
2x2=4 nên n=4
n = 2
hoặc n= -2
n là 2 vì 2 x2=4
n x n = 4
Vì n là 1 số mà số đó bằng 4
=> n = 2
=> Ta có đẳng thức : 2 x 2 = 4
Ủng hộ Đúng nhé !
N = 2.
Đúng 100% luôn!
Ai tk cho mình mình tk lại.
n=2 hoặc -2
= 2 nha
n x n = 4
Vậy n là 2 x 2 = 4 hoặc là -2 x -2 = 4
nhé , mình cũng lớp 3 nên mình nghiêng về phương án 2 hơn