Indlela yokubala imisebenzi yeTrigonometry usebenzisa nayiphi na isangqa

NguMary Jane Sterling

Xa umisela amaxabiso omsebenzi we-trig yeengile ezibotshwe kwindawo esemgangathweni kwisangqa esikumazantsi aso, awunyanzelekanga ukuba ube nesangqa secandelo ukubala uququzelelo. Ungasebenzisa isangqa nangayo nayiphi na irediyasi, ukuba nje iziko likho kwimvelaphi.



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Sebenzisa ii-angles kumfanekiso owandulelayo, unokulandela la manyathelo ukufumana i-sine ye-angle α:

  1. 1. Fumana i x- kunye no-y-uququzelelo lwendawo apho icala lesiphelo le-engile linqamleza khona nesangqa.



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    Unxibelelaniso zezi x = –5 kunye y = 12.

  2. 2. Misela i-radius yesangqa.

    Ukulingana kwesangqa kunye neziko laso ekuqaleni x Mbini+ Y Mbini= r Mbini. Ukutshintsha i x kwaye Y kweli nxaki no -5 no-12, ngokulandelelana, ufumana (–5)Mbini+ (12)Mbini= 25 + 144 = 169 = r Mbini. Ingcambu ka-169 ingu-13, ngoko ke irediyasi yi-13.



  3. 3. Chonga umyinge womsebenzi uze ubeke endaweni yamaxabiso.

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Emva koko, usebenzisa ii-angles kulo mzobo, fumana i-cotangent ye-angle β.

  1. Fumana i-x- kunye no-y-uququzelelo lwendawo apho icala lesiphelo le-engile linqumla kwisangqa.

    Unxibelelaniso zezi x = -12 kunye Y = -5.

    Umsebenzi wecotangent usebenzisa kuphela x -Kwaye Y -Ukulungelelanisa, ke awudingi ukusombulula irediyo.

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  2. Chonga umyinge womsebenzi kwaye ubeke amaxabiso endaweni yawo.

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Ngoku, usebenzisa ii-angles kumfanekiso owandulelayo, fumana i-secant ye-angle γ.

  1. 1. Fumana i x -Kwaye Y -lungelelanisa indawo apho icala lesiphelo leengile linqumla kwisangqa.

    Unxibelelaniso zezi x = 0 Kunye Y = -13.

  2. Misela i-radius yesangqa.

    Ukusuka kumzekelo wokuqala, irediyasi yi-13.

  3. Chonga umyinge womsebenzi kwaye ungene endaweni yamaxabiso.

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    Lo mlinganiselo awuchazwanga, nto leyo ethetha ukuba i-engile γ ayinasec sec.