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கணிதத்தின் ஆச்சரியமான சில வடிவங்கள் [size=4] [size=3]>> 1 x 8 + 1 = 9[/size] [size=3]>> 12 x 8 + 2 = 98[/size] [size=3]>> 123 x 8 + 3 = 987[/size] [size=3]>> 1234 x 8 + 4 = 9876[/size] [size=3]>> 12345 x 8 + 5 = 98765[/size] [size=3]>> 123456 x 8 + 6 = 987654[/size] [size=3]>> 1234567 x 8 + 7 = 9876543[/size] [size=3]>> 12345678 x 8 + 8 = 98765432[/size] [size=3]>> 123456789 x 8 + 9 = 987654321[/size] [size=3]>>[/size] [size=3]>> 1 x 9 + 2 = 11[/size] [size=3]>> 12 x 9 + 3 = 111[/size] [size=3]>> 123 x 9 + 4 = 1111[/size] [size=3]>> 1234 x 9 + 5 = 11111[/size] [size=3]>> 12345 x 9 + 6 = 111111[/size] [size=3]>> 123456 x 9 + 7 = 1111111[/size] [size=3]>> 1234567 x 9 + 8 = 11111111[/size] [size=3]>> 12345678 x 9 + 9 = 111111111[/size] [size=3]>> 123456789 x 9 +10= 1111111111[/size] [size=3]>>[/size] [size=3]>> 9 x 9 + 7 = 88[/size] [size=3]>> 98 x 9 + 6 = 888[/size] [size=3]>> 987 x 9 + 5 = 8888[/size] [size=3]>> 9876 x 9 + 4 = 88888[/size] [size=3]>> 98765 x 9 + 3 = 888888[/size] [size=3]>> 987654 x 9 + 2 = 8888888[/size] [size=3]>> 9876543 x 9 + 1 = 88888888[/size] [size=3]>> 98765432 x 9 + 0 = 888888888[/size] [size=3]>>[/size] [size=3]>> And look at this symmetry:[/size] [size=3]>>[/size] [size=3]>> 1 x 1 = 1[/size] [size=3]>> 11 x 11 = 121[/size] [size=3]>> 111 x 111 = 12321[/size] [size=3]>> 1111 x 1111 = 1234321[/size] [size=3]>> 11111 x 11111 = 123454321[/size] [size=3]>> 111111 x 111111 = 12345654321[/size] [size=3]>> 1111111 x 1111111 = 1234567654321[/size] [size=3]>> 11111111 x 11111111 = 123456787654321[/size] [size=3]>> 111111111 x 111111111 = 12345678987654321[/size] [/size] வரவுக்கு நன்றிகள் கு.மா அண்ணா, தமிழ் சிறி,உடையார்.