Question

очень срочно нужно, помогите пожалуйста.​

Answer 1

$1) \sqrt{17^{2}-8^{2} } and 17-8 \\\sqrt{(17-8)(17+8)} and 17-8\\\sqrt{225} and 17-8\\ 15 and 9\\15>9$

$2) \sqrt{117^{2} -108^{2} } and 117-108\\\sqrt{(117-108)(117+108)} and 117-108\\\sqrt{2025}and117-108\\ 45 and 9\\45>9$

$3) \sqrt{21.8^{2}-18.2^{2} } and 21.8-18.2\\\\\sqrt{(21.8+18.2)(21.8-18.2)} and 21.8-18.2\\\\\sqrt{144}and21.8-18.2\\ \\12and3.6\\12>3.6$

$4)\sqrt{4^{2}+8^{2} } and 4 + 8\\\sqrt{16+64} and 12\\\sqrt{80}and12\\\\4\sqrt{5} <12$