Please awnser and make sure it is right I will brainlist

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]