Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 4x + 2 = 0?	Choose one: A) 8 B) 10 C) 2 D) 16 E) 24
a/b + b/a = (a2 + b2)/ab = (a2 + b2 + a + b)/ab   = [(a + b)2 - 2ab]/ab   a + b = -4/1 = -4   ab = 2/1= 
<gadget id="calculator">2/1</gadget>
<output>2</output>
2   Hence a/b + b/a= [(-4)2 - 2(2)]/2 = 4/2= 
<gadget id="calculator">4/2</gadget>
<output>2</output>
2.   2)
<result>C</result>
Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 4x + 2 = 0?