tìm tích của tất cả các số có 1 chữ số
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5 ko bít đúng ko
bn có chơi liên minh huyền thoại à
mik thích kalista với tôn ngộ không với yasuo nữa
đáp án đây nha
11,12,15,24,36 nha
Tick tớ đi
Tớ sẽ giúp bạn thật nhiều nà
L i k e tớ nhá
Goi nhung so can tim la ab . Ta có:
ab=axbx2, b chan
ax10+b=axbx2
b=axbx2-ax10
b=ax(bx2-10)
De bx2-10 thì b phải là 6 hoặc 8
Nếu b=8, ta có:8= ax(8x2-10); 8=ax6. Vậy không có kết quả nào phù hợp với lý giải trên
Nếu b=6, ta có:6= ax(6x2-10); 6=ax2. Vậy a=3, suy ra ab=36
Gọi số cần tìm là ab ta có
ab=axbx2, b chan
ax10+b=axbx2
b=axbx2-ax10
b=ax(bx2-10)
De bx2-10 thì b phải là 6 hoặc 8
Nếu b=8, ta có:8= ax(8x2-10); 8=ax6. Vậy không có kết quả nào phù hợp với lý giải trên
Nếu b=6, ta có:6= ax(6x2-10); 6=ax2. Vậy a=3, suy ra ab=36
Gọi số đó có dạng ab
Xét tích các số có một chữ số có tích là 12 là :
+ 3 . 4
+ 2 . 6
=> ( a , b ) = ( 3 , 4 ) , ( 4 , 3 ) , ( 2 , 6 ) , ( 6 , 2 )
=> ab thuộc { 34 ; 43 ; 26 ; 62 }
Vậy tất cả các ố có 2 chữ số có tích các chữ số bằng 12 là : 34 ; 43 ; 26 ; 62
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địt lồn mẹ mày bú buồi đầu buồi liếm lông chim