Respuesta :

Luv2Teach

Answer:

Step-by-step explanation:

The answer you have chosen is incorrect. This is derived from the Pythagorean Identity:

[tex]sin^2x+cos^2x=1[/tex] If we manipulate this and get the 1 over by the sin and then move the cos over, we would have

[tex]sin^2x-1=-cos^2x[/tex]