1. The problem statement, all variables and given/known data I had an exam conversion problem: A position vector (between the origin and point (5,2,3) is expressed as r = 5x+2y+3z. Express this vector in cylindrical coordinates. row = SQRT(5^2 + 2^2) = 5.385 Fie = tan-1(2/5) = 21.8 degrees Z = Z. This was a multiple choice test and the answers were: A) r=2.232r+0.134(theta)+3(fie) B) r=0.5(row)-0.866(fie)+3z C) r=5.385(row)+3z D) None of the above I chose D, because the correct value of fie is not there and A is sypherical.. But, I got it wrong and the correct answer is said to be C. I wanted to check with you guys first before going to the professor but is there something I missed??