Answer: 22 square inches
Step-by-step explanation:
The answer is .90º + 90º = 180º, <span>.90º is not an obtuse angle</span>
The measure of the angle is 50 degrees because it is half the arc that it is enclosed by
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
This is the answer for the calculation