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❖❜❥❡❝t ❇❛s✐❝s ❆♥ ♦❜❥❡❝t ✐s ♠❡r❡❧② ❛ ♥❛♠❡❞ ❝♦❧❧❡❝t✐♦♥ ♦❢ ♥❛♠❡✲✈❛❧✉❡ ♣❛✐rs ✭✇❤✐❝❤ ✐♥❝❧✉❞❡ ❢✉♥❝t✐♦♥s✮✳ ❱❛❧✉❡s ❛r❡ r❡❢❡rr❡❞ t♦ ❛s ♦❜❥❡❝t ♣r♦♣❡rt✐❡s ✳ > ① ❂ ④ ❛✿ ✾ ⑥ ✴✴❖❜❥❡❝t ❧✐t❡r❛❧ ♥♦t❛t✐♦♥ ④ ❛✿ ✾ ⑥ > ①✳❛ ✾ > ❞❡❧❡t❡ ①✳❛ tr✉❡ > ① ④⑥ > ❞❡❧❡t❡ ①✳❛ ✴✴❢❛❧s❡ r❡t✉r♥❡❞ ♦♥❧② ❢♦r ♥♦♥✲❝♦♥✜❣ tr✉❡ ✴✴♣r♦♣❡rt② ✐♥ ♥♦♥✲str✐❝t ♠♦❞❡ > ❖❜❥❡❝ts

❖❜❥❡❝t ❇❛s✐❝s ❈♦♥t✐♥✉❡❞ ✴✴❛♥♦♥ ❢✉♥❝t✐♦♥ ✐s ✈❛❧✉❡ ❢♦r ❢ > ① ❂ ④ ❛✿ ✾✱ ❢✿ ❢✉♥❝t✐♦♥ ✭❛✱ ❜✮ ④ r❡t✉r♥ ❛ ✰ ❜❀ ⑥ ⑥ ④ ❛✿ ✾✱ ❢✿ ❬❋✉♥❝t✐♦♥✿ ❢❪ ⑥ > ①✳ ❢ ✭✸✱ ✺✮ ✽ > ① ❂ ✬❛✬ ✬❛✬ > ④ ❬①❪✿ ✹✷ ⑥ ✴✴✈❛r✐❛❜❧❡ ❛s ♥❛♠❡✳ ④ ❛✿ ✹✷ ⑥ > ④ ① ⑥ ④ ①✿ ✬❛✬ ⑥ > ❖❜❥❡❝ts

▼♦t✐✈❛t✐♥❣ ❊①❛♠♣❧❡ ❢♦r Pr♦t♦t②♣❡s✿ ❈♦♠♣❧❡① ◆✉♠❜❡rs ❝♦♥st ❝✶ ❂ ④ ①✿ ✶✱ ②✿ ✶✱ t♦❙tr✐♥❣ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ❵✩④t❤✐s✳①⑥ ✰ ✩④t❤✐s✳②⑥✐❵ ⑥✱ ♠❛❣♥✐t✉❞❡ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ▼❛t❤✳ sqrt ✭ t❤✐s ✳①✯ t❤✐s ✳① ✰ t❤✐s ✳②✯ t❤✐s ✳②✮❀ ⑥ ⑥ ❖❜❥❡❝ts

▼♦t✐✈❛t✐♥❣ ❊①❛♠♣❧❡ ❢♦r Pr♦t♦t②♣❡s✿ ❈♦♠♣❧❡① ◆✉♠❜❡rs ❈♦♥t✐♥✉❡❞ ❝♦♥st ❝✷ ❂ ④ ①✿ ✸✱ ②✿ ✹✱ t♦❙tr✐♥❣ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ❵✩④t❤✐s✳①⑥ ✰ ✩④t❤✐s✳②⑥✐❵ ⑥✱ ♠❛❣♥✐t✉❞❡ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ▼❛t❤✳ sqrt ✭ t❤✐s ✳①✯ t❤✐s ✳① ✰ t❤✐s ✳②✯ t❤✐s ✳②✮❀ ⑥ ⑥ ❝♦♥s♦❧❡✳ ❧♦❣ ✭❵✩④❝✶✳t♦❙tr✐♥❣✭✮⑥✿ ✩④❝✶✳♠❛❣♥✐t✉❞❡✭✮⑥❵✮❀ ❝♦♥s♦❧❡✳ ❧♦❣ ✭❵✩④❝✷✳t♦❙tr✐♥❣✭✮⑥✿ ✩④❝✷✳♠❛❣♥✐t✉❞❡✭✮⑥❵✮❀ ❖❜❥❡❝ts

▼♦t✐✈❛t✐♥❣ ❊①❛♠♣❧❡ ❢♦r Pr♦t♦t②♣❡s✿ ❈♦♠♣❧❡① ◆✉♠❜❡rs ❈♦♥t✐♥✉❡❞ ✩ ♥♦❞❡❥s ✳✴❝♦♠♣❧❡①✶✳❥s ✶ ✰ ✶✐✿ ✶✳✹✶✹✷✶✸✺✻✷✸✼✸✵✾✺✶ ✸ ✰ ✹✐✿ ✺ ◆♦t❡ t❤❛t ❡❛❝❤ ❝♦♠♣❧❡① ♥✉♠❜❡r ❤❛s ✐ts ♦✇♥ ❝♦♣② ♦❢ t❤❡ t♦❙tr✐♥❣✭✮ ❛♥❞ ♠❛❣♥✐t✉❞❡✭✮ ❢✉♥❝t✐♦♥s✳ ❖❜❥❡❝ts

❯s✐♥❣ ❛ Pr♦t♦t②♣❡ ❖❜❥❡❝t t♦ ❍♦❧❞ ❈♦♠♠♦♥ ❋✉♥❝t✐♦♥s ❝♦♠♣❧❡①❋♥s ❂ ④ t♦❙tr✐♥❣ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ❵✩④t❤✐s✳①⑥ ✰ ✩④t❤✐s✳②⑥✐❵ ⑥✱ ♠❛❣♥✐t✉❞❡ ✿ ❢✉♥❝t✐♦♥ ✭✮ ④ r❡t✉r♥ ▼❛t❤✳ sqrt ✭ t❤✐s ✳①✯ t❤✐s ✳① ✰ t❤✐s ✳②✯ t❤✐s ✳②✮❀ ⑥ ⑥ ❖❜❥❡❝ts

❯s✐♥❣ ❛ Pr♦t♦t②♣❡ ❖❜❥❡❝t t♦ ❍♦❧❞ ❈♦♠♠♦♥ ❋✉♥❝t✐♦♥s✿ ❈♦♥t✐♥✉❡❞ ✴✴✉s❡ ❝♦♠♣❧❡①❋♥s ❛s ♣r♦t♦t②♣❡ ❢♦r ❝✶ ❝♦♥st ❝✶ ❂ ❖❜❥❡❝t✳ ❝r❡❛t❡ ✭❝♦♠♣❧❡①❋♥s✮❀ ❝✶✳① ❂ ✶❀ ❝✶✳② ❂ ✶❀ ✴✴✉s❡ ❝♦♠♣❧❡①❋♥s ❛s ♣r♦t♦t②♣❡ ❢♦r ❝✷ ❝♦♥st ❝✷ ❂ ❖❜❥❡❝t✳ ❝r❡❛t❡ ✭❝♦♠♣❧❡①❋♥s✮❀ ❝✷✳① ❂ ✸❀ ❝✷✳② ❂ ✹❀ ❝♦♥s♦❧❡✳ ❧♦❣ ✭❵✩④❝✶✳t♦❙tr✐♥❣✭✮⑥✿ ✩④❝✶✳♠❛❣♥✐t✉❞❡✭✮⑥❵✮❀ ❝♦♥s♦❧❡✳ ❧♦❣ ✭❵✩④❝✷✳t♦❙tr✐♥❣✭✮⑥✿ ✩④❝✷✳♠❛❣♥✐t✉❞❡✭✮⑥❵✮❀ ❖❜❥❡❝ts

Pr♦t♦t②♣❡ ❈❤❛✐♥s ❊❛❝❤ ♦❜❥❡❝t ❤❛s ❛♥ ✐♥t❡r♥❛❧ ❬❬Pr♦t♦t②♣❡❪❪ ♣r♦♣❡rt②✳ ❲❤❡♥ ❧♦♦❦✐♥❣ ✉♣ ❛ ♣r♦♣❡rt②✱ t❤❡ ♣r♦♣❡rt② ✐s ✜rst ❧♦♦❦❡❞ ❢♦r ✐♥ t❤❡ ♦❜❥❡❝t❀ ✐❢ ♥♦t ❢♦✉♥❞ t❤❡♥ ✐t ✐s ❧♦♦❦❡❞ ❢♦r ✐♥ t❤❡ ♦❜❥❡❝t✬s ♣r♦t♦t②♣❡❀ ✐❢ ♥♦t ❢♦✉♥❞ t❤❡r❡✱ ✐t ✐s ❧♦♦❦❡❞ ❢♦r ✐♥ t❤❡ ♦❜❥❡❝t✬s ♣r♦t♦t②♣❡✬s ♣r♦t♦t②♣❡✳ ❚❤❡ ❧♦♦❦✉♣ ❝♦♥t✐♥✉❡s ✉♣ t❤❡ ♣r♦t♦t②♣❡ ❝❤❛✐♥ ✉♥t✐❧ t❤❡ ♣r♦♣❡rt② ✐s ❢♦✉♥❞ ♦r t❤❡ ♣r♦t♦t②♣❡ ✐s ♥✉❧❧ ✳ ◆♦t❡ t❤❛t t❤❡ ♣r♦t♦t②♣❡ ❝❤❛✐♥ ✐s ♦♥❧② ✉s❡❞ ❢♦r ♣r♦♣❡rt② ❧♦♦❦✉♣✳ ❲❤❡♥ ❛ ♣r♦♣❡rt② ✐s ❛ss✐❣♥❡❞ t♦✱ t❤❡ ❛ss✐❣♥♠❡♥t ✐s ♠❛❞❡ ❞✐r❡❝t❧② ✐♥ t❤❡ ♦❜❥❡❝t❀ t❤❡ ♣r♦t♦t②♣❡ ✐s ♥♦t ✉s❡❞ ❛t ❛❧❧✳ Pr♦t♦t②♣❡ ❝❛♥ ❜❡ ❛❝❝❡ss❡❞ ✉s✐♥❣ ❖❜❥❡❝t✳❣❡tPr♦t♦t②♣❡❖❢✭✮ ♦r ❴❴♣r♦t♦❴❴ ♣r♦♣❡rt② ✭s✉♣♣♦rt❡❞ ❜② ♠♦st ❜r♦✇s❡rs✱ ❜❡✐♥❣ ♦✣❝✐❛❧❧② ❜❧❡ss❡❞ ❜② st❛♥❞❛r❞s✱ ❜✉t ✐s ♥♦ ❧♦♥❣❡r r❡❝♦♠♠❡♥❞❡❞ ✮✳ ❖❜❥❡❝ts

❖❜❥❡❝t ▼❡t❤♦❞s ❚❤❡ ❖❜❥❡❝t ❝❧❛ss ❤❛s ♠❛♥② ✉s❡❢✉❧ ♠❡t❤♦❞s✳ ❙♦♠❡ ♣❛rt✐❝✉❧❛r❧② ✉s❡❢✉❧ ♦♥❡s✿ ❖❜❥❡❝t✳❝r❡❛t❡✭♣r♦t♦✮ ❘❡t✉r♥s ♥❡✇ ♦❜❥❡❝t ✇✐t❤ ♣r♦t♦t②♣❡ ♣r♦t♦ ✳ ❖❜❥❡❝t✳❛ss✐❣♥✭t❛r❣❡t✱✳✳✳s♦✉r❝❡s✮ ❆ss✐❣♥ s♦✉r❝❡ ♣r♦♣❡rt✐❡s t♦ t❛r❣❡t ✱ ✇✐t❤ ❧❛t❡r s♦✉r❝❡ ♣r♦♣❡rt✐❡s ♦✈❡r✇r✐t✐♥❣ ❡❛r❧✐❡r ♦♥❡s✳ ❘❡t✉r♥s t❛r❣❡t ✳ ❖❜❥❡❝t✳❣❡t❖✇♥Pr♦♣❡rt②◆❛♠❡s✭♦❜❥✮ ❆❧❧ ♥♦♥✲✐♥❤❡r✐t❡❞ ♣r♦♣❡rt② ♥❛♠❡s✳ ❖❜❥❡❝t✳❦❡②s✭✮✱ ❖❜❥❡❝t✳✈❛❧✉❡s✭✮✱ ❖❜❥❡❝t✳❡♥tr✐❡s✭✮ ❊♥✉♠❡r❛❜❧❡ ❦❡②s✱ ✈❛❧✉❡s ❛♥❞ ❦❡②✲✈❛❧✉❡ ♣❛✐rs✳ ❖❜❥❡❝ts

❈♦♥str✉❝t♦rs ❊✈❡r② ❢✉♥❝t✐♦♥ ❤❛s ❛ ♣r♦t♦t②♣❡ ♣r♦♣❡rt②✳ ❚❤❡ ❋✉♥❝t✐♦♥ ❝♦♥str✉❝t♦r ✐♥✐t✐❛❧✐③❡s ✐t t♦ s♦♠❡t❤✐♥❣ ✇❤✐❝❤ ❧♦♦❦s ❧✐❦❡ ④ ❝♦♥str✉❝t♦r✿ t❤✐s ⑥ ✳ ❆♥② ❢✉♥❝t✐♦♥ ✇❤✐❝❤ ✐s ✐♥✈♦❦❡❞ ♣r❡❝❡❡❞❡❞ ❜② t❤❡ ♥❡✇ ♣r❡✜① ♦♣❡r❛t♦r ✐s ❜❡✐♥❣ ✉s❡❞ ❛s ❛ ❝♦♥str✉❝t♦r✳ ❲✐t❤✐♥ t❤❡ ❜♦❞② ♦❢ ❛ ❢✉♥❝t✐♦♥ ✐♥✈♦❦❡❞ ❛s ❛ ❝♦♥str✉❝t♦r✱ t❤✐s r❡❢❡rs t♦ ❛ ♥❡✇❧② ❝r❡❛t❡❞ ♦❜❥❡❝t ✐♥st❛♥❝❡ ✇✐t❤ ❬❬♣r♦t♦t②♣❡❪❪ ✐♥t❡r♥❛❧ ♣r♦♣❡rt② s❡t t♦ t❤❡ ♣r♦t♦t②♣❡ ♣r♦♣❡rt② ♦❢ t❤❡ ❢✉♥❝t✐♦♥✳ ❍❡♥❝❡ t❤❡ ♣r♦t♦t②♣❡ ♣r♦♣❡rt② ♦❢ t❤❡ ❢✉♥❝t✐♦♥ ♣r♦✈✐❞❡s ❛❝❝❡ss t♦ t❤❡ ♣r♦t♦t②♣❡ ❢♦r t❤❡ ♦❜❥❡❝t ✐♥st❛♥❝❡❀ s♣❡❝✐✜❝❛❧❧②✱ ❛ss✐❣♥✐♥❣ t♦ ❛ ♣r♦♣❡rt② ♦❢ t❤❡ ❢✉♥❝t✐♦♥ ♣r♦t♦t②♣❡ ✐s ❡q✉✐✈❛❧❡♥t t♦ ❛ss✐❣♥✐♥❣ t♦ t❤❡ ♦❜❥❡❝t ♣r♦t♦t②♣❡✳ ❇② ❝♦♥✈❡♥t✐♦♥ ✱ ❝♦♥str✉❝t♦r ♥❛♠❡s st❛rt ✇✐t❤ ❛♥ ✉♣♣❡r❝❛s❡ ❧❡tt❡r✳ ❖❜❥❡❝ts