Identify Pythagorean Triplet.

$8^2+K^2={17}^{2}8^2+K^2=17^2$ then K = ……

$\sqrt{4^4\times 5^4}\backslash sqrt\{4^4\backslash times5^4\}$ = ……

$\sqrt{\frac{25}{64}}\backslash sqrt\{\backslash frac\{25\}\{64\}\}$ = ……

$\sqrt{1}\backslash sqrt\{1\}$ = ……

$\sqrt{3388}\backslash sqrt\{3388\}$ = ……

$\sqrt[3]{500}\times \sqrt[3]{686}\backslash sqrt[3]\{500\}\backslash times\backslash sqrt[3]\{686\}$ = ……

$\sqrt{0.4489}\backslash sqrt\{0.4489\}$ = ……

$\sqrt{12\frac{169}{676}}\backslash sqrt\{12\backslash frac\{169\}\{676\}\}$ = ……

${15}^{3}15^3$ = ……