Answer:

Step-by-step explanation:



Answer:
Step-by-step explanation:

Answer:
I have made it in above pic
Answer:
Steps shown below
Step-by-step explanation:
We will simplify this using definitions and identities. Let's start.

Using
, we have:

Using
, we have:

Hence, proved.
No because you would not be able to divide them by a number and get the same answer so no they are not proportional