Simplify the expression sin 2x+ sin x + cos2x - 1.
1 answer:
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Answer:
D. two acute angles
Step-by-step explanation:
Let us quickly plot the vertices on a graph to obtain the figure in the attachment.
Connecting the four points gives a square.
We know a square has the following properties.
A. four right angles
.......True
B. four vertices
................True
C. two sets of parallel lines
......True
D. two acute angles...................False.....A square has four right angles.
Therefore the correct choice is D
a is adjacent, b is opposite, and c is the hypotenuse that correctly describes the locations of the sides in relation to Y.Option D is correct,
<h3>What is the triangle?</h3>A triangle is a three-sided polygon. It is one of the most fundamental geometric forms.
The complete question is
"Given right triangle XYZ, which correctly describes the locations of the sides in relation to Y?
a is opposite, b is adjacent, c is the hypotenuse
a is the hypotenuse, b is opposite, c is adjacent
a is adjacent, b is the hypotenuse, c is opposite
a is adjacent, bis opposite, c is the hypotenuse"
Refer to the attached file for a clear understanding.
The positions of the sides in regard to Y are described by the terms and are adjacent, b is opposite, and c is the hypotenuse.
Hence the correct answer is D.
To learn more about the triangle, refer to:
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