Answer:
Ok... what's the question
Step-by-step explanation:
Idk but I think the answer you are looking for is D
Answer:

Step-by-step explanation:
Given

Required
Use the expression to prove a trigonometry identity
The given expression is not complete until it is written as:

Going by the Pythagoras theorem, we can assume the following.
- a = Opposite
- b = Adjacent
- r = Hypothenuse
So, we have:


Having said that:
The expression can be further simplified as:

Substitute values for sin and cos
becomes

Answer:
for this one I think it mostly 3
Its basically just subtracting from one another
for example, 6-6 is 6
or -4-3= 7