Q.1

Question

True/False: Determine whether each of the statements that

follow is true or false. If a statement is true, explain why.

If a statement is false, provide a counterexample.

Step-by-Step Solution

Verified
Answer

a. True

b. True

c. False

d. True

e. False

f.  True

g. False

h. True

1Step 1. Given Information

A curve created by the intersection of a plane and a circular cone is a cone.

2Step 2. Given Information

Any plane that does not pass through the vertx will intersect the cone in a curve is called as a conic section.

3Step 3. Given Information

An ellipse is the set of points in the plane such that the sum of the distances to the foci is constant. 

4Step 4. Given Information

A parabola is the set of points in the plane equidistant from a given fixed line of the parabola and a given fixed point.

5Step 5. Given Information

A parabola is just a parabola not a hyperbola.

6Step 6. Given Information

A plane through the vertex will intersect the cone in either a single point , a line.or a pair of intersecting lines. 

7Step 7. Given Information

A hyperbola is the set of points in the plane for which the differences of the distances to the two foci is constant.

8Step 8. Given Information

It's a parabola because $$r=\frac{1}{1+sin(\theta )}$$ is in standard form. So, when comparing it with standard form e=1. It appears to bea parabola.