I hope someone solves your problem :)
Answer:
b = h cos α.
Step-by-step explanation:
sin β = b / h
b = h sin β.
or cos α = b / h
so b = h cos α.
The correct answer is: cost of goods sold
Substitute everything in first
3(-2)-1-3(-2)
Then simplify
-6-1+6 = -1
The answer is -1