Réitigh cos(45^circ)/sin(45^circ)-tan(45^circ)=

$$\frac{ \cos ( 45 ^ { \circ } ) }{ \sin ( 45 ^ { \circ } ) } - \tan ( 45 ^ { \circ } ) =$$

Luacháil

$$0$$

Céimeanna Réitigh

Faigh luach do\cos(45)ón dtábla luachanna triantánúla.

$$\frac{\frac{\sqrt{2}}{2}}{\sin(45)}-\tan(45)$$

Faigh luach do\sin(45)ón dtábla luachanna triantánúla.

$$\frac{\frac{\sqrt{2}}{2}}{\frac{\sqrt{2}}{2}}-\tan(45)$$

Roinn \frac{\sqrt{2}}{2} faoi \frac{\sqrt{2}}{2} trí \frac{\sqrt{2}}{2} a mhéadú faoi dheilín \frac{\sqrt{2}}{2}.

$$\frac{\sqrt{2}\times 2}{2\sqrt{2}}-\tan(45)$$

Cealaigh 2\sqrt{2} mar uimhreoir agus ainmneoir.

$$1-\tan(45)$$

Faigh luach do\tan(45)ón dtábla luachanna triantánúla.

$$1-1$$

Dealaigh 1 ó 1 chun 0 a fháil.

$$0$$