You are given 2cos² (4θ - 1). You are asked to s<span>implify the expression by using a double-angle formula.
Apply the double angle of the cosine function
</span>cos2θ = 2cos² θ - 1
Rearranging the expression and then substituting them
2cos² θ = cos2θ + 1
2cos² (4θ - 1) = cos 2(4θ - 1) + 1
cos2(4θ - 1) + 1
Answer:
70
50
50
50
The easiest way to do it is to add the first digits then add the zero.
Hope that helps and have a great day!
The coordinates of A'and B'when AB is reflected in the y-axis are; (-2,5) and (-6,3).
<h3>What are the coordinates of A'and B'when AB is reflected in the y-axis?</h3>
According to the task content, it follows that the reflected points A' and B's coordinates are required.
From the graph, the coordinates of A= (2,5) and B= (6,3).
On this note, the coordinates of A' and B' upon reflection over the y-axis is; (-2,5) and (-6,3) respectively.
Read more on line reflection;
brainly.com/question/14062035
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If you have three quarters and each is a value of 25¢ you add and get 75¢ and you add the $4 which gives you $4.75
Answer:
-8
Step-by-step explanation:
5 plus 3 is 8 and since both numbers have a negative, it will all so be a negative
