Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Function
y
=
sin
−
1
(
2
x
1
+
x
2
)
y = \sin^{-1}\left(\frac{2x}{1+x^2}\right)
y
=
sin
−
1
(
1
+
x
2
2
x
)
is not differentiable for (a)
∣
x
∣
<
1
|x| < 1
∣
x
∣
<
1
(b)
x
=
1
,
−
1
x = 1, -1
x
=
1
,
−
1
(c)
∣
x
∣
>
1
|x| > 1
∣
x
∣
>
1
(d) None of these
Browse the problem library