Answer:
ellipse
Step-by-step explanation:
bc you should already know
Answer: its the same amount
Step-by-step explanation:
B1 to H1, B3 to H2, B2 to H3.
Answer:
Step-by-step explanation:
In each case, draw the right triangle which produces the inverse trig value. That is, label the two sides as needed, and calculate the third side.
It should be clear that


sin(2α) = 2 sinα cosα
So,

See what you can do with the others.
It means that the two vectors are perpendicular or orthogonal