1.b 2.34 is the correct answer
28.2% of 1128
(28.2%)(1128)
(28.2/100)(1128)
(0.282)(1128)
318.096
The answer is 318.096
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