Question

COROANA+FOLLOW+MULTUMESC
1)arata ca numerele 9 49 196 676 1024 sunt patrate perfecte
2)numește patratele perfecte pana la 10

Answer 1

1)    9 = 3 × 3 = 3²

49 = 7 × 7 = 7²

196 → il descompun in factori primi

196   l   2

 98  l  2

  49 l  7  x 7

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196 = 2² × 7² = ( 2 × 7 )² = 14² → patrat perfect

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676   l  2

338   l 2

169   l  13  x 13

676 = 2² x 13² = ( 2 x 13 )² = 26² → patrat pefect

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1 024  l  2

 512   l  2

 256  l  2

  128  l  2

    64  l  8²

1 024 = 4² × 8² = ( 4 × 8 )² = 32² → patrat perfect

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2)   1²= 1;    2² = 4;   3² = 9 → patratele perfecte pana la 10