Respuesta :

Felixnoel

Answer:

= cot²A

Step-by-step explanation:

ito na po step by step explanation

Ver imagen Felixnoel
silirobert15

[tex](1-sin^{2}A)(1+cot^{2}A) = cos^{2}A .\frac{1}{sin^{2}A } = \frac{cos^{2}A }{sin^{2}A } = (\frac{cosA}{sinA} )^{2} =cot^{2}A[/tex]

ok done. Thank to me :>