Answer:
B)
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Hey There!
We can find the answer by using proportions of the other sides
What i mean by this is if ADs proportion to AE is the same as BDs proportion to EC then DE is proportional to BC
6/4=1.5
9/6=1.5
Therefore DE is proportional (or similar) to BC
Answer:
sin⁴x - sin²x
sin²x(sin²x - 1)
(1 - cos²x)(1 - cos²x - 1)
(1 - cos²x)(-cos²x)
-cos²x + cos⁴x
cos⁴x - cos²x