2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev piav qhia: Txawm hais tias feem ntau cov haujlwm trigonometric yog siv nrog cov duab peb sabmuaj qee qhov xwm txheej thaum lawv tuaj yeem siv rau txhua hom duab peb sab. … Yog tias koj muaj ob sab muab thiab ib lub kaum sab xis ntawm lawv koj tuaj yeem siv txoj haujlwm trigonometric txoj cai lij choj ntawm Cosines los suav rau sab thib peb.
Koj puas tuaj yeem siv SOH CAH TOA ntawm daim duab peb sab uas tsis yog txoj cai?
Rau cov duab peb sab sab xis, peb muaj Pythagoras 'Theorem thiab SOHCAHTOA. Txawm li cas los xij, cov qauv no tsis ua haujlwm rau cov duab peb sab tsis yog txoj cai.
Puas Kev txhaum ua haujlwm rau daim duab peb sab tsis yog?
Txoj Cai ntawm Sines tuaj yeem siv los daws cov duab peb sab oblique, uas yog daim duab peb sab tsis yog. Raws li txoj cai lij choj ntawm Sines, qhov piv ntawm qhov ntsuas ntawm ib lub kaum sab xis rau qhov ntev ntawm nws sab nraud yog sib npaug rau ob qhov sib piv ntawm lub kaum sab xis ntsuas rau sab nraud.
Daim duab peb sab twg siv tau rau trigonometry?
ib daim duab peb sab yog daim duab peb sab uas ib lub kaum sab xis yog kaum sab xis. Kev sib raug zoo ntawm ob sab thiab lub kaum sab xis ntawm daim duab peb sab yog lub hauv paus rau trigonometry.
Puas yog trigonometry tsuas siv tau rau cov duab peb sab xwb?
Trigonometric Ratios tsuas yog siv tau rau ib lub kaum sab xis . Lub kaum sab xis yog daim duab peb sab tshwj xeeb uas ib lub kaum sab xis yog 90 o thiab lwm ob yog tsawg dua 90o. … Tsis tas li ntawd, nws yog opposite lub kaum sab xis ntawm lubdaim duab peb sab. Base: Sab ntawm lub kaum sab xis ntawm daim duab peb sab sawv yog hu ua nws lub hauv paus.
Pom zoo:
Puas txhua daim duab peb sab muaj ib ncig?
Theorem: Txhua daim duab peb sab yog voj voog, piv txwv li txhua daim duab peb sab muaj circumscribed voj voog los yog voj voog. Daim duab peb sab puas tsis muaj qhov ntsuas qhov ntsuas? Lub voj voog tsis yog ib txwm nyob hauv daim duab peb sab.
Qhov twg yog lub ntsiab lus ntawm concurrency ntawm nruab nrab ntawm daim duab peb sab?
Qhov nruab nrab yog ib txoj kab uas koom nrog qhov nruab nrab ntawm ib sab thiab rov qab vertex ntawm daim duab peb sab. Yog li ntawd, lub ntsiab lus ntawm concurrency ntawm qhov nruab nrab ntawm daim duab peb sab yog hu ua the centroid.. Qhov twg yog qhov sib txuam ntawm qhov siab ntawm daim duab peb sab?
Lub kaum sab xis yog daim duab peb sab?
Triangle angle sum theorem: Qhov no hais tias cov lej ntawm tag nrho peb lub kaum sab hauv sab hauv Lub kaum sab xis Nyob rau hauv geometry, lub kaum sab hauv ntawm daim duab peb sab yog cov kaum sab xis uas tsim hauv daim duab peb sab. Cov ces kaum sab hauv muaj cov khoom nram qab no:
Puas yog daim duab peb sab nrog ob sab sib npaug?
Isosceles Isosceles. Daim duab peb sab isosceles tuaj yeem kos rau ntau txoj hauv kev. Nws tuaj yeem kos kom muaj ob sab sib npaug thiab ob lub kaum sib npaug lossis nrog ob lub kaum ntse ntse thiab ib lub kaum obtuse. Nws yog ib qho yooj yim los ua kom tiav cov ces kaum uas ploj lawm ntawm daim duab peb sab isosceles los ntawm kev nrhiav cov ces kaum uas yuav tsum sib npaug.
Puas yog txhua daim duab peb sab sib npaug?
Ib daim duab peb sab sib npaug yog daim duab peb sab uas nws ob sab sib npaug. … Yog li ntawd, txij li tag nrho peb sab ntawm daim duab peb sab sib npaug sib npaug, tag nrho peb lub kaum sab xis sib npaug, ib yam nkaus. Li no, txhua daim duab peb sab sib npaug kuj yog qhov sib npaug.
