Ratio is comparing two things or numbers, like what is the ratio of 3 green balls and 5 purple balls answer is 3:5
Cot^2x - cot^2x cos^2x
= cot^2x - {(cot^2x)(cos^2x)}
= cot^2x { 1 - cos^2x }
= cot^2x { sin^2x }
= (cos^2x/sin^2x) { sin^2x }
= cos^2x
D because it has to be a chord due to being perpendicular to a diameter
Step-by-step explanation:
Should be Emily, Morgan, Kali, Rosa
