Which of the following is written as a rational function
1 answer:
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The given point (-3/5 , y) lies in the third quadrant.
It is also given that the point lies on a unit circle.
For a point (x,y) lying on a unit circle a and y are defined as:
x = cos θ
y = sin θ
So, we can say for the point (-3/5 , y) the value -3/5 is equal to cos θ
sec θ is the reciprocal of cos θ.
So, sec θ = -5/3
Using Pythagorean identity we can first find sin θ.
Since the point lies in 3rd quadrant, both sin and cos will be negative.
So, now we can write:
Answers:
sec θ = -5/3
cot θ = 3/4
It is also given that the point lies on a unit circle.
For a point (x,y) lying on a unit circle a and y are defined as:
x = cos θ
y = sin θ
So, we can say for the point (-3/5 , y) the value -3/5 is equal to cos θ
sec θ is the reciprocal of cos θ.
So, sec θ = -5/3
Using Pythagorean identity we can first find sin θ.
Since the point lies in 3rd quadrant, both sin and cos will be negative.
So, now we can write:
Answers:
sec θ = -5/3
cot θ = 3/4
Explanation:
<u>Question 1</u>
At $5 = $3750 revenue
At $17 = $2500 revenue
Hence, at $5 the revenue is more.
<u>Question 2</u>
Looking at the vertex (maximum point of the curve), we can identify that the company should sell their products at cost of $10 by which they will make a revenue of $5000.
<u>Question 3</u>
Domain lies in the x axis of the graph. Here the domain:
0 ≤ x ≤ 20
