Both sides aren't equal because 1-sin^2x = cos^2x and cos^2x / 1+cosx can never equal cosx
Answer:
-12 , -6
Step-by-step explanation:
- 7 - 5 = - 12
- 2 - 4 = - 6
Answer:

Step-by-step explanation:
The missing details in the question are:


Required
The perimeter
This is calculated as:

So, we have:

Open bracket

Rewrite as:

The answer is because 3 squared =9
Answer: 3
Step-by-step explanation: Substitute the value of the variable into the equation and simplify.