BLAGAM POMOC DAJE NAJ
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Odpowiedź:
[tex]2. \: a) \: {5}^{2} + {12}^{2} = {x}^{2} \\ 25 + 144 = {x}^{2} \\ {x}^{2} = 169 \\ x = \sqrt{169} \\ x = 13[/tex]
[tex]b) \: {6}^{2} + {5}^{2} = {x}^{2} \\ 36 + 25 = {x}^{2} \\ {x}^{2} = 61 \\ x = \sqrt{61} [/tex]
[tex]c) \: {x}^{2} + {12}^{2} = {15}^{2} \\ {x}^{2} + 144 = 225 \\ {x}^{2} = 225 - 144 \\ {x}^{2} = 81 \\ x = \sqrt{81} \\ x = 9[/tex]
Odpowiedź:
a) x²=5²+12²
x²=25+144
x²= 169
x=13
b) x²=6²+5²
x²=36+25
x²=61
x= pierwiastek z 61
c)15²=12²+x²
225=144+x²
x²=81
x=9