Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Zirui J.
Tutor for two years
Tutor Satisfaction Guarantee
Mandarin
TutorMe
Question:

What does “不识庐山真面目,只缘身在此山中” mean?

Zirui J.
Answer:

Literal meaning: Why can't I tell the true shape of Lu-shan? because I myself am in the mountains.

Calculus
TutorMe
Question:

Find dy/dx of following: x=cos(t), y=sin(t)

Zirui J.
Answer:

dx/dt = -sin(t) dy/dt = cos(t) dy/dx = (dy/dt)/(dx/dt)= -1/tan(t)

Algebra
TutorMe
Question:

What expression represents f(g(x))? f(x) = x^2 +5x - 6, g(x) = 7x + 8.

Zirui J.
Answer:

In order to determine f(g(x)), g(x) needs to be plugged into f(x): f(g(x)) = (7x+8)^2 + 5(7x+8)-6 = 49x^2+112x+64+35x+40-6 = 49x^2+147x+98

Send a message explaining your
needs and Zirui will reply soon.
Contact Zirui
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.