Question

Please awnser and make sure it is right I will brainlist

Answer 1

Answer:

Step-by-step explanation:

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

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

$sin^2x-1=-cos^2x$