"15/45" = "1/3"
"45/135" = "1/3"
I am going to simplify the top before simplifying the rest.
tan = sin/cos, so tan * cos simplifies down to sin in the numerator. which leaves sin/sin which equals 1.
to make a long story short the answer is 1
The answer would be -7/24
-1x6+1/6x1/4
-6+1/6x1/4
-7/6x1/4
-7x1/6x4
-7/6x4
-7/24
Answer:

Step-by-step explanation:
By definition we know that

and

As 
Then

Now square both sides of the equation:



In the second quadrant sin (t) is positive. Then we take the positive root


Hi
I used another place to type my answer because I don't think Brainly has all the tools I need.
I hope this finally help and I am sorry for my laziness :)
As always, I am here to help!