tan thiab arctan yog ob qho kev ua haujlwm sib txawv. Lawv tso tseg ib leeg tawm.
Yuav ua li cas trig tso tseg ib leeg?
Ib txwm thiab thim rov qabua haujlwm tshem tawm ib leeg tawm | Physics Forums.
Yuav ua li cas tshem tawm tangent?
Siv tus reciprocal tus kheej thiab tus lej ntawm tus lej hloov pauv mus rau tangent muaj nuj nqi thiab muab ob qho tib si ntawm feem ntawm tus lej los ntawm tus lej kom tshem tawm cov radical.
Yog arctan txwv?
Kev ua haujlwm tan(x) yog ntau rau ib lub sijhawm ua haujlwm, yog li txhawm rau txheeb xyuas qhov kev hloov pauv yuav tsum kom peb txwv nws cov npe (lossis txwv qhov ntau ntawm cov haujlwm thim rov qab). Txhawm rau txhais arctan(x) ua haujlwm peb tuaj yeemtxwv lub npe ntawm tan(x) rau (−π2, π2).
Puas arctan zoo ib yam li 1 tan?
Nws hloov tawm tias arctan thiab cot yog qhov sib cais tiag tiag: cot(x)=1/tan(x), yog li cov cotangent yog qhov sib txuam ntawm ib qho tangent, lossis, nyob rau hauv lwm yam lus, lub multiplicative inverse. arctan(x) yog lub kaum sab xis uas nws tangent yog x.
