The value of cos 4x from the given identity is 0.999
<h3>Trigonometry identity</h3>
Given the cosine identity
cos8x = 13/36
Determine the value of x
8x = arccos(13/36)
8x = 0.36111
x = 0.36111/8
x = 0.04514
Determine the value of cos4x
cos4x = cos4(0.04514)
cos4(0.04514) = 0.999
Hence the value of cos 4x from the given identity is 0.999
Learn more trig identity here; brainly.com/question/7331447
2-2=0
5-3=2
so the answer is o over 2 aka 0/2
Since it is an equilateral triangle, all of the sides are the same length.
So, x=14 :)
Hope this helps!
The method to use is Combination
<h3>What is combination?</h3>
Combination is a way or method of selecting items from a collection without a defined order or manner.
The formula for finding Combination is given as;
Combination = n!/ r!(n -r)!
n = 135
r = 2
Combination = 135!/ 2!(135 - 2)!
Thus, the method to use is Combination
Learn more about combination here:
brainly.com/question/11732255
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The answer is 184 like du
