Answer:
either 34 or 214
Step-by-step explanation:
Expand the squared binomials:


Then





$396.66/24 students = $16.5275 which could be rounded to $16.53
The answer is 36. because 12x3=36, 9x4=36, and 4x9=36, so it is the least common denominator
I hope this helps you
✔cos^2A+sin^2A=1
✔1-cos^2A=sin^2A
✔cos2A=cos^2A-sin^2A
✔sin2A=2.sinA.cosA
secA=1/cosA
tgA=sinA/cosA
sin^2A/1/cos^2A-sin^2A/cos^2A
sin^2A.cos^2A/cos2A
2.sin^2A.cos^2A/cos2A
sin2A.2.sin2A/cos2A
tg2A.2.sin2A