Math question: What is the smallest positive integer value of n, as per Fermat's theorem, for which the equation x^n + y^n = z^n has no whole number solutions?
+
Math question: What is the limit as x approaches 5 of (2x^2 - 3x + 1)/(x - 5)?
+
Find the dot product of vector A = (3, -2) and vector B = (-4, 6).