Odpowiedź:
Zadanie 1
a)
[tex]x^{2} +21^{2} = 25^{2}\\ x^{2} + 441 = 625\\x^{2} = 625-441\\x^{2} = 184\\x = 2\sqrt{46}[/tex]
b)
[tex]2^{2} + 5^{2}= a^{2} \\4 + 25 = a^{2}\\29 = a^{2}\\\\a = \sqrt{29}[/tex]
c)
[tex]n^{2} + \sqrt{7}^2 = 4^{2} \\n^{2} + 7 = 16\\n^{2} = 9\\n = 3[/tex]
Zadanie 2
[tex]12^{2} + c^{2} =20^{2}\\144+c^{2} = 400\\c^2 = 400-144\\c^2 = 265\\c = 16\\\\16^2 + 30^2 = x^2\\256 + 900 = x^2\\1156 = x^2 \\34 = x[/tex]
Szczegółowe wyjaśnienie:
