Video: Vim li cas trigonometric tus kheej muaj txiaj ntsig hauv kev daws cov kab zauv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov cim pab kom peb ua kom yooj yim cov lus qhia yooj yim. Lawv yog cov cuab yeej yooj yim ntawm trigonometry siv los daws qhov sib npaug trigonometric , ib yam li factoring, nrhiav cov denominators, thiab siv cov qauv tshwj xeeb yog cov cuab yeej yooj yim ntawm daws algebraic kev sib npaug.
Tom qab ntawd, dab tsi ua rau kev sib npaug trigonometric yog tus kheej?
Hauv lej, trigonometric tus kheej yog kev sib npaug uas koom nrog trigonometric functions thiab muaj tseeb rau txhua tus nqi ntawm qhov tshwm sim variables uas ob sab ntawm qhov sib npaug yog txhais. Geometrically, cov no yog tus kheej koom nrog qee yam haujlwm ntawm ib lossis ntau lub kaum.
Kuj Paub, dab tsi yog qhov sib npaug trigonometric? A kev sib npaug trigonometric yog ib qho kev sib npaug uas muaj a trigonometric muaj nuj nqi. Raws li tau hais hauv Trigonometric Cov cim, a kev sib npaug trigonometric uas muaj tseeb rau txhua lub kaum sab xis yog hu ua a trigonometric tus kheej. Muaj lwm yam kev sib npaug , txawm li cas los xij, qhov ntawd tsuas yog muaj tseeb rau qee cov ces kaum.
Ib yam li ib tug yuav nug, dab tsi yog txoj hauv kev yooj yim tshaj los daws cov cim trigonometric?
Kauj ruam 1: Hloov tag nrho sec, csc, cot, thiab tan rau kev txhaum thiab cos. Feem ntau qhov no tuaj yeem ua tiav los ntawm kev siv cov quotient thiab reciprocal tus kheej . KAUJ RUAM 2: Tshawb xyuas txhua lub kaum sab xis rau cov lej thiab qhov sib txawv thiab siv qhov tsim nyog tus kheej tshem lawv. KAUJ RUAM 3: Tshawb xyuas lub kaum ntse ntse thiab tshem tawm siv cov qauv tsim nyog.
Kev txhaum 2x sib npaug li cas?
sib 2x =( kev txhaum x)2=12(1−cos( 2x ib )).
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