Koj pom tus nqi pes tsawg ntawm cos 7pi li cas?

Cov txheej txheem:

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Video: Koj pom tus nqi pes tsawg ntawm cos 7pi li cas?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-11-26 05:38

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Kuj nug, koj puas pom tus nqi ntawm cot 7pi 6 li cas?

cog 7pi / 6 Radians Cov cot ntawm 7 pib / 6 radians yog √3, tib yam li cot ntawm 7 pib / 6 radians nyob rau hauv degrees. Hloov 7 pib / 6 radians rau degrees multiply 7 pib / 6 Los ntawm 180 ° / = 210 °. cog 7pi / 6 = cot 210 degrees.

Tsis tas li ntawd, qhov kev txhaum ntawm pi tshaj 12 yog dab tsi? Tshuab xam zauv kev txhaum (π 12 )= kev txhaum 15∘=0.26.

Tsis tas li ntawd, tus nqi pes tsawg ntawm cos 60 raws li pom ntawm lub voj voog tsev yog dab tsi?

Tej zaum koj yuav paub qhov ntawd cos ( 60 °) = 1/2 thiab sin( 60 °) = √3/2 as well as tan(45°)=1, but are 30, 45 and 60 tib lub kaum sab xis mus txog 90 ° nrog cov qauv rau lawv cov trig tus nqi ?

Koj yuav daws Tan pi 12 li cas?

1 Teb

2tan(π12) = 1-tan2(π12)
tan2(π12)+2√3tan(π12)−1=0.
tan(π 12) = 2 − √3.

Pom zoo:

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