Sarah S.

Baylor University Mathematics Major

Tutor Satisfaction Guarantee

Trigonometry

TutorMe

Question:

How do you find sin, cos, and tan of an angle in a triangle?

Sarah S.

Answer:

Any easy way to remember the difference between sin, cos, and tan is the acronym SohCahToa. This mean that Sin of an angle is found by taking the value of the Opposite line divided by the Hypotenuse. Cosine of an angle is found by taking the value of the Adjacent line (the one touching the angle) and dividing it by the Hypotenuse. And Tangent of an angle is found by taking the value of the Opposite line and dividing it by the Adjacent line.

Geometry

TutorMe

Question:

How do you know if two lines are parallel?

Sarah S.

Answer:

Two lines are parallel if they have the same slope. Algebraically, you can see this in the equation y=mx+b. If the two lines have the same m, then they have the same slope because m=slope. Geometrically, you can find the slope of two lines by taking the difference in the y value and dividing it by the difference in the x value of each line (rise over run) and seeing if they equal each other.

Calculus

TutorMe

Question:

What is a derivative?

Sarah S.

Answer:

A derivative is the slope of any curve. When you find the slope at any given point, you are finding the tangent line to that slope. However, you can find the overall equation that gives you this tangent line by finding the limit as x approaches a point, c, of (f(x)-f(c))/(x-c).

Send a message explaining your

needs and Sarah will reply soon.

needs and Sarah will reply soon.

Contact Sarah

Ready now? Request a lesson.

Start Session

FAQs

What is a lesson?

A lesson is virtual lesson space on our platform where you and a tutor can communicate.
You'll have the option to communicate using video/audio as well as text chat.
You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.

How do I begin a lesson?

If the tutor is currently online, you can click the "Start Session" button above.
If they are offline, you can always send them a message to schedule a lesson.

Who are TutorMe tutors?

Many of our tutors are current college students or recent graduates of top-tier universities
like MIT, Harvard and USC.
TutorMe has thousands of top-quality tutors available to work with you.