x=4,3,2 or,1 are the possible
N> 75 should be the best one
Answer:
A
Step-by-step explanation:
We are given:

To make it simpler and more clear, we can let u = sin(x). So:

Now, it becomes obvious that we can factor, which produces:

Cancel:

And substituting back:

Hence, our answer is A.
A) By the rules of secants,
5(x +5) = 6(6 +4)
x + 5 = 12
x = 7
b) 3(3 +5) = 4(x +4)
6 = x +4
2 = x