Réitigh tan^2θ-sec^2θ=

$$\tan ^ { 2 } \theta - \sec ^ { 2 } \theta =$$

Fachtóirigh

$$-1$$

Céimeanna Réitigh

Is féidir an riail seo a úsáid chun difríocht na n-uimhreacha cearnacha a fhachtóiriú: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).

$$\left(\tan(\theta )-\frac{1}{\cos(\theta )}\right)\left(\tan(\theta )+\frac{1}{\cos(\theta )}\right)$$

Mar shampla \tan(\theta )-\frac{1}{\cos(\theta )}. Fág \frac{1}{\cos(\theta )} as an áireamh.

$$\frac{\sin(\theta )-1}{\cos(\theta )}$$

Mar shampla \tan(\theta )+\frac{1}{\cos(\theta )}. Fág \frac{1}{\cos(\theta )} as an áireamh.

$$\frac{\sin(\theta )+1}{\cos(\theta )}$$

Athscríobh an slonn iomlán fachtóirithe.

$$\left(\sin(\theta )-1\right)\left(\sin(\theta )+1\right)\times \left(\frac{1}{\cos(\theta )}\right)^{2}$$

Luacháil

$$-1$$