Yuav ua li cas koj pom cosine ntawm lub tshuab xam zauv scientific?
Yuav ua li cas koj pom cosine ntawm lub tshuab xam zauv scientific?

Video: Yuav ua li cas koj pom cosine ntawm lub tshuab xam zauv scientific?

Video: Yuav ua li cas koj pom cosine ntawm lub tshuab xam zauv scientific?
Video: Mathematics with Python! Sequences 2024, Kaum ib hlis
Anonim

Nias lub " Cos " khawm, feem ntau pom nyob rau hauv nruab nrab ntawm lub tshuab xam zauv . " Cos "yog luv rau cosine . Koj tshuab xam zauv yuav tsum tso saib " cos (. Sau qhov ntsuas ntawm lub kaum sab xis koj xav paub qhov cosine piv ntawm.

Tsuas yog li ntawd, koj ua li cas inverse cosine ntawm lub tshuab xam zauv?

Nias thiab xyuas tias koj tshuab xam zauv yog teem rau Degree hom. Hloov ua lwm yam a trigonometric ratio rov qab rau anangle ntsuas, siv lub thim rov qab muaj nuj nqi pom saum cov keykey uas muaj nuj nqi. Nias, xaiv lub thim rov qab muaj nuj nqi, xws li [SIN 1], [ COS 1], lossis [TAN 1], thiab nkag mus rau qhov piv. Tom qab ntawd, kaw cov kab lus thiab nias.

Ib tug kuj nug, koj puas tuaj yeem ua trig yam tsis muaj lub tshuab xam zauv? Feem ntau thaum koj nug kom xam tus trig muaj nuj nqi ntawm lub kaum sab xis tsis muaj lub laij lej , koj yuav muab ib daim duab peb sab, thiab lub kaum sab xis koj nug txog yog ib ntawm cov ces kaum hauv daim duab peb sab. Nyob rau sab laug yog hu ua sab uas nyob ib sab, thiab nws yog siv rau xam tus cosine.

Kuj paub, ua li cas koj pom cosine ntawm lub kaum sab xis?

Nyob rau hauv txhua txoj cai daim duab peb sab, lub cosine ntawm lub kaum sab xis yog qhov ntev ntawm sab uas nyob ib sab (A) muab faib los ntawm qhov ntev ntawm lub hypotenuse (H). Hauv ib qauv , nws yog sau yooj yim li ' cos '.

Dab tsi yog qhov inverse ntawm cos?

Arccos(x) muaj nuj nqi Lub arccosine ntawm x yog txhais raws li tus thim rov qab cosine muaj nuj nqi ntawm x thaum -1≦x≦1. Thaum lub cosine ntawm y sib npaug rau x: cos y = x. Tom qab ntawd lub arccosine ntawm x yog sib npaug thim rov qab cosine muaj nuj nqi ntawm x, uas yog sib npaug rau y:arccos x = cos -1 x = y.

Pom zoo: