Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Evaluate
lim
x
→
0
1
+
2
x
−
1
+
x
x
\displaystyle \lim_{x\to 0}\frac{\sqrt{1+2x}-\sqrt{1+x}}{x}
x
→
0
lim
x
1
+
2
x
−
1
+
x
.
Browse the problem library