Answer:
SA = LA + 2B
Step-by-step explanation:
find the area of bases, 2(.5*6*8)=48
find area of rectangles (LA) , (17*8)+(17*8)+(17*10)
Add everything for SA
Answer:
2cosAcos2A, 4sinAcos^2A
Step-by-step explanation:
cos3A+cosA
2cos((3A+A)/2)cos((3A-A)/2)
2cos(4A/2)cos(2A/2)
2cosAcos2A
sin3A+sinA
2sin((3A+A)/2)cos((3A-A)/2)
2sin(4A/2)cos(2A/2)
2sin2AcosA
4sinAcos^2A
Answer:
C
Step-by-step explanation:
See the attached photos.
Wrote this out pretty messy, sorry!