The value of the cosine of angle 45° will be 1 / √2. Then the correct option is E.
What is a co-sinusoidal Function?
It is a function that repeats itself in a particular time interval.
It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.
We know that the cosine value for the angles 0°, 30°, 45°, 60°, and 90°.
cos 0° = 1
cos 30° = √3 / 2
cos 45° = 1 / √2
cos 60° = 1 / 2
cos 90° = 0
Thus, the value of the cosine of angle 45° will be 1 / √2.
Then the correct option is E.
The graph of cosine is given below.
More about the cosine function link is given below.
https://brainly.com/question/17954123
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