Finding the inverse of an integer a in Z_n
9039
What is the best way to solve modular arithmetic equations such as $9x \equiv 33 \pmod{43}$?
105416
How can I find an inverse to the Binet formula?
153506
Proving the inverse of a matrix equals $I_n-\frac{1}{n-1}A$
97150
Solve $[2^{(2^{403})}] = [a]$ in $\mathbb Z_{23}$ where $0 \le a < 23$.
124523
Finding an Inverse Function and Composition of Functions?
145279
Compute the (multiplicative) inverse of $4x+3$ in the field $\frac {\Bbb F_{11}[x]}{\langle x^2+1 \rangle}$?
76327
Finding inverse of polynomial in a field
149364
Characteristic polynomial of an inverse
119297
Finding invertible polynomials in polynomial ring $\mathbb{Z}_{n}[x]$
127764
Showing that $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ contains multiplicative inverses
97656
Finding $a_n$ if $a_0=a_1=1,a_{n+1}=n(a_n+a_{n-1})\ \ (n\ge 1).$
51161
Finding the inverse of 84 mod 5
119299
Getting inverse of a transposition key
1970
Inverse Euler totient function
69833
Number of elements not equal to their inverses is even number
15000
Show that number of elements in $(Z/nZ)^*$ is $\phi (n)$
115236
Calculate the sum of inverse values of ${n\choose 0}, {n\choose 1}, ... {n\choose n}$