Question 13
What is the number of real number solutions of the equation $x^2-8[x]+7=0$?
Note: $[x]$ denotes the largest integer that is not greater than $x$. For example, $[3.14]=3$ and $[-3.14]=-4$.
Section B instruction: Show your detailed solution. Each question is worth 20 points.
Note: $[x]$ denotes the largest integer that is not greater than $x$. For example, $[3.14]=3$ and $[-3.14]=-4$.
Section B instruction: Show your detailed solution. Each question is worth 20 points.