Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Explain why
tan
θ
\tan\theta
tan
θ
is undefined at
θ
=
π
2
\theta=\dfrac{\pi}{2}
θ
=
2
π
while
sin
θ
\sin\theta
sin
θ
is defined at the same angle.
Browse the problem library