Wrong Answer. Using the Pythagorean Theorem, the magnitude of this vector is That's incorrect because we didn't square 2. We squared 2 and ended up with an incorrect negative sign. Right Answer. Using the Pythagorean Theorem, the magnitude of this vector is
Another Right Answer. Since (2)^{2} equals 2^{2}, the magnitude of the vector <2,3> is the same as the magnitude of the vector <2,3>, which is
