Hơi bị dài :
\(1^2=1\)
\(2^2=4\)
\(3^2=9\)
\(4^2=16\)
\(5^2=25\)
\(6^2=36\)
\(7^2=49\)
\(8^2=64\)
\(9^2=81\)
\(10^2=100\)
\(11^2=121\)
\(12^2=144\)
\(13^2=169\)
\(14^2=196\)
\(15^2=225\)
\(16^2=256\)
\(17^2=289\)
\(18^2=324\)
\(19^2=361\)
\(20^2=400\)
0^2 = 0; 1^2 = 1; 2^2 = 4; 3^2 = 9; 4^2 = 16; 5^2 = 25; 6^2 = 36; 7^2 = 49; 8^2 = 64; 9^2 = 81; 10^2 = 100; 11^2 = 121; 12^2 = 144; 13^2 = 169; 14^2 = 196; 15^2 = 225; 16^2 = 256; 17^2 = 289; 18^2 = 324; 19^2 = 361; 20^2 = 400
Chúc bạn học tốt!