For how many values n is 2^n = n^2 ?  Choose the most appropriate option.
A) None B) One C) Two D) Three E) More than Three
draw a graph with x^2 and 2^x, you'll see 3 intercepts between the 2 curves, but one is in the 2nd quadrant,Thus 3 are valid, and the answer is Three
<result>D</result>
For how many values n is 2^n = n^2 ?