Examlex
If the permutations of 1, 2, 3, 4, 5, 6 are written in lexicographic order, with 123456 in position #1, 123465 in position #2, etc., find the permutation immediately before 534126.
Simplify
Simplifying a mathematical expression or problem means breaking it down to its most basic form to make it simpler to understand or resolve.
Operation Indicated
The specific mathematical procedure or action suggested by a problem or equation.
Collect Like Terms
In algebra, to combine terms that have the same variables raised to the same power.
Simplify
To make (something) simpler or easier to understand or do.
Q9: How many permutations of the seven letters
Q28: <span class="ql-formula" data-value="\text { Find the transitive
Q42: You pick two books at random, one
Q44: If T is a full binary tree
Q48: How many words end with the letter
Q51: Using reverse alphabetical ordering, find a spanning
Q56: Every tree is planar.
Q69: Given that gcd(620, 140) = 20, write
Q79: Either find an integer <span
Q108: Find the number of subsets of S