Answer ISSSSSSSSSSS
2,327.71
Answer:
cos(theta/2) = sqrt((1+x)/2)
Step-by-step explanation:
From the double angle formula
cos^2(t)-sin^2(t) = cos(2t) ...................(1)
cos^2(x)+sin^2(x) = cos(t-t) =1...............(2)
Add (1) and (2)
2cos^2(t) = 1+cos(2t)
cos^2(t) = (1+cos(2t))/2
cos(t) = sqrt((1+cos(2t))/2)
substitute t = theta/2
cos(theta/2) = sqrt((1+cos(theta))/2)
substitute cos(theta) = x
cos(theta/2) = sqrt((1+x)/2)
Answer:
x = 60
∘
Explanation:
As indicated by the markings, all the sides of this triangle are equal, and therefore all the angles of this triangle must be equal as well.
Let x be an angle,
so by the triangle sum theorem, we can say that:
3 x = 180
∘
x = 60
∘
https://socratic.org/questions/what-is-the-measure-of-angle-x-for-the-following-triangle#637450
this would be equal to factorial 3 which is written 3! .
It is 3 * 2 * 1 = 6 numbers answer.
