Write a vertical line as a polar equation

The video tutorial explains how to solve for X using trigonometric functions. It begins by introducing the problem and replacing X with R cosine of Theta. The instructor then demonstrates how to solve for R by dividing by cosine of Theta, leading to the understanding that this is equivalent to multiplying by secant of Theta. The tutorial concludes with a recap of the solution and key points.

What is the initial question posed about X in the video?

• What does X equal?

• What is the value of Theta?

• What is the cosine of Theta?

• How to find R?

What equation is formed when R cosine of Theta is replaced?

• R secant of Theta equals 4

• R tangent of Theta equals 4

• R sine of Theta equals 4

• R cosine of Theta equals 4

How do you solve for R when R cosine of Theta equals 4?

• Multiply by sine of Theta

• Subtract cosine of Theta

• Divide by cosine of Theta

• Add cosine of Theta

What is the equivalent operation to dividing by cosine of Theta?

• Multiplying by sine of Theta

• Multiplying by tangent of Theta

• Multiplying by secant of Theta

• Multiplying by cotangent of Theta

What trigonometric function is introduced as equivalent to dividing by cosine?

• Tangent

• Secant

• Cotangent

• Sine