If an equation is an identity, then how many solutions does it have?
2 answers:
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The purple line is tangent. Tangent line intersects a circle in only 1 point
The yellow dot is the point of tangency. It is the point where tangent line touches the circle
The light blue line is secant. Secant line intersects a circle in 2 points
The red line is the radius. Radius is the distance from center to the outer rim of the circle.
The green line is the diameter. It is the line passing through the center of a circle. It measures twice the radius
The gray line is the chord. Chord is the line whose endpoints lie on the circle.
Arc AB is a minor arc
Arc ABCD is a major arc
The yellow dot is the point of tangency. It is the point where tangent line touches the circle
The light blue line is secant. Secant line intersects a circle in 2 points
The red line is the radius. Radius is the distance from center to the outer rim of the circle.
The green line is the diameter. It is the line passing through the center of a circle. It measures twice the radius
The gray line is the chord. Chord is the line whose endpoints lie on the circle.
Arc AB is a minor arc
Arc ABCD is a major arc
Correct Answer: Option A
The next step in simplification will be to convert the squared term so that it no longer contains a square.
So, we are to simplify the term
Using the half-angle identity we can write:
Using this value, the equation becomes:
Therefore, option A is the correct answer.
The next step in simplification will be to convert the squared term so that it no longer contains a square.
So, we are to simplify the term
Using the half-angle identity we can write:
Using this value, the equation becomes:
Therefore, option A is the correct answer.