Puas yog sin squared x sib npaug rau sin x squared?
Puas yog sin squared x sib npaug rau sin x squared?

Video: Puas yog sin squared x sib npaug rau sin x squared?

Video: Puas yog sin squared x sib npaug rau sin x squared?
Video: Tsis Yog Hmoob Sib Ntxhais Ntxawm - SODA Poj Laib Khej Me (Cover) 2024, Kaum ib hlis
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Yog nws yog. kev txhaum ^2x yog ib yam sinx ^ 2 vim nyob rau hauv ob qhov xwm txheej "^ 2 "isrelating rau xwb x.

Tsuas yog li ntawd, yog kev txhaum squared tib yam li 2 kev txhaum?

Kev txhaum x^ 2 yog " sib ntawm (x- squared )”, yog li nws yog ib qho yooj yim sib muaj nuj nqi. Kev txhaum ^ 2 x yog" sib - squared ntawm x” uas yog qhov txawv ntawm qhov sib muaj nuj nqi. i.e. kev txhaum ^ 30 =( kev txhaum 30)^ 2 = 1/ 2 …… Nws yog kev sib txuas ntawm " sib ntawm x quant squared ”, yog li koj yuav daws tau kev txhaum x ua ntej thiab ces coj lub square.

Tsis tas li ntawd, yog kev txhaum (- X sib npaug rau sin x? Txij li - x yog tib lub kaum sab xis x reflectedacross tus x -axis, sin(-x ) =- kev txhaum ( x ) as sin(-x ) thim rov qab nws qhov zoo thiab qhov tsis zoo ib nrab thaum koj xav txog qhov sib koom ua ke ntawm cov ntsiab lus ntawm lub voj voog ntawm lub voj voog hauv daim ntawv p = (cos( x ), kev txhaum ( x )).

Kuj paub, puas yog sin 2 x tib yam li 2sinx?

Hauv lus Askiv dawb, 1 yog muab faib los ntawm whereas, 2 yog sine 2 muab faib ua x , los yog ob zaug lub kaum sab xis x . Yog li ob qhov sib txawv heev. Interestingly raws li sine yog aperiodic (repeating) waveform, cov duab no yuav intersectperiodically thiab ob kab lus yuav ntsuas rau lub ib yam tshwm sim!

sin2x txhais li cas?

sib 2x thiab sin(2 x ) yog tib yam, thawj zaug tsuas yog ib txoj kev tub nkeeg los sau nws xwb. Nkawd ob leeg txhais tau tias "multiply x by 2 and then take the sine of that" Ntawm qhov tod tes, 2sinx txhais tau tias " coj lub sine ntawm x ua ntej, ces muab nws los ntawm 2"

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