Toán Lớp 6: 1. Tính:l
a, 1 mũ 2 + 2 mũ 2 + 3 mũ 2 + 4 mũ 2
b, 1 mũ 3 + 2 mũ 3 + 3 mũ 3 + 4 mũ 3
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Toán Lớp 6: 1. Tính:l
a, 1 mũ 2 + 2 mũ 2 + 3 mũ 2 + 4 mũ 2
b, 1 mũ 3 + 2 mũ 3 + 3 mũ 3 + 4 mũ 3
Comments ( 2 )
=1+4+9+16
=30
b)1^3 + 2^3 + 3^3 + 4^3
=1+8+27+64
=100