If you mean proof that the opposite sides of a parallelogram are equal, you draw a diagonal then prove that the 2 triangles formed are congruent.
Answer:
C
Step-by-step explanation:
The key word is x-axis, and since the bottom line is the x, just look for a reflection of it.
Answer:
1
Step-by-step explanation:
We are given that

Numbers are in radians
Substitute x=-1

Substitute x=-0.25

Substitute x=-0.01

Substitute x=-0.005

Substitute x=0.005

Substitute x=0.01

Substitute x=0.25

Substitute x=1

Therefore, 